In this task, you are given an article. Your task is to summarize the article in a sentence.
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Question: The raids took place at informal refugee camps in the Baalbek region.
On Monday, at least eight bombers blew themselves up in the predominantly Christian village of Qaa, killing five people and injuring almost 30 others.
No group has said it was behind the attacks, but suspicion has fallen on jihadist militants from Islamic State.
IS has carried out previous suicide bombings that have killed scores of people in Lebanon.
Lebanon's official National News Agency (NNA) cited an army statement as saying that troops had raided Syrian refugee encampments on Tuesday and arrested 103 Syrians "for not having legal papers". Nine motorbikes were also confiscated.
Troops also searched the Qaa Projects (Masharia Qaa) camp for "wanted individuals", according to an NNA reporter in the area.
Masharia Qaa is located outside the village of Qaa, where the mayor advised residents to stay indoors after Monday's unprecedented attacks.
In the first wave of attacks, four suicide bombers blew themselves up one after the other at dawn outside a house in Qaa.
Five people were killed and another 15 wounded, including four soldiers who went to investigate the first blast.
It was not immediately clear who or what the attackers planned to target, but the house was about 150m (490ft) from a Lebanese customs border point on the road linking the Bekaa valley to the Syrian town of Qusair.
In the main square of Qaa, a statue of Saint Elias, holding his sword menacingly, stands tall and imposing.
Emotions are running high in the predominantly Christian border town, where anger is mounting towards tens of thousands of Syrian refugees living in makeshift settlements nearby.
The mayor described the residents of these encampments as "ticking bombs".
As such, the suicide attacks might have been a turning point in the relationship between the Lebanese and the Syrian refugees there; from annoyance to suspicion and accusation.
The consequences for both groups could be dire.
Many residents believe that ultimately the saint will protect the town. But they are not only counting on God's intervention. People openly carry weapons, from guns to rifles, dangling from their waists or in their grasp.
They are vowing to take security in their own hands.
Soon after nightfall on Monday, 13 other people were wounded when another four assailants opened fire and detonated their explosive vests near the Church of Saint Elias, shouting "Allahu Akbar" ("God is greatest"), NNA said.
People had reportedly gathered at the church for the funerals of those killed that morning.
The army later issued statements calling on residents not to gather anywhere in the area and requesting that the funerals be postponed until further notice.
Baalbek-Hermel governor Bashir Khodr also imposed a curfew on Syrian refugees living in the village and surrounding areas.
"The security situation today is above all considerations," Mr Khodr told the television channel LBC.
The militant Shia Islamist movement, Hezbollah, blamed the attacks on IS and said it was postponing a religious event in Beirut on Tuesday.
Foreign Minister Gebran Bassil, who visited Qaa after Monday morning's attacks, said the border villages formed part of a "fence" for Lebanon. "When a terrorist enters, he can go anywhere," he added.
Mr Bassil, whose Free Patriotic Movement party leads the largest Christian bloc in parliament, called on Sunday for municipalities to ban gatherings or camps of Syrian refugees.
Lebanon has seen repeated attacks linked to the five-year conflict in Syria, where Hezbollah has sent thousands of fighters to support President Bashar al-Assad.

Answer: Lebanon's army has detained more than 100 Syrians for entering the country illegally following a series of suicide bombings in a border village.


Question: Paul Feig, who also directed Bridesmaids, confirmed the follow-up to the hit supernatural comedy in a tweet.
Feig wrote: "It's official. I'm making a new Ghostbusters & writing it with @katiedippold & yes, it will star hilarious women.
"That's who I'm gonna call."
There had been rumours about a third instalment to the movie franchise for a while.
As Paul Feig confirmed his involvement he also revealed he is working with Parks And Recreation writer Katie Dippold on a script.
The original Ghostbusters in 1984, directed and produced by Ivan Reitman, was a commercial success which earned nearly $300m (Â£385m) at the box office.
The sequel movie, Ghostbusters 2 in 1989 wasn't quite as well received with mixed reviews and taking $215m (Â£132m).
Paul Feig was the favourite to take-over directing the movie franchise since Ivan Reitman - who directed the first two Ghostbusters films - decided in March that he would not be involved.
The first movie starred Bill Murray, Dan Aykroyd and Harold Ramis.
They played three unemployed parapsychology professors who start a ghost removal service and end up having to save the world from an ancient god.
Harold Ramis whose character was Dr Egon Spengler in the supernatural comedy, died in February at the age of 69.
Dan Aykroyd, who starred as Dr Raymond Stantz is expected to be a producer on the new film.
Whilst Murray, who played Dr Peter Venkman in the original, gave his backing to the idea of an all-female update to the series.
He told the Toronto Star last month: "I'm fine with it. I would go to that movie, and they'd probably have better outfits too."
Murray tipped Melissa McCarthy and Kristen Wiig - who worked with director Feig on Bridesmaids - The Amazing Spider-Man's Emma Stone and Linda Cardellini from Freaks And Geeks as possible stars.
On Newsbeat's Facebook page, Andy Toogood said: "All female cast? Why? Ruining a classic."
Lee Bateman commented: "Anna Kendrick, Alexandra Daddario and Emma stone are names I put forward.
"I really really really hope Bill Murray and Dan Aykroyd make some sort of appearance." He added.
Jonross Swaby said: "I can see Sarah Silverman in this role."
"Jennifer Anderson" was the suggestion Bernadette Pritchard made on Newsbeat's Facebook.
Follow @BBCNewsbeat on Twitter and Radio1Newsbeat on YouTube

Answer: The new Ghostbusters movie is likely to star an all-female cast of comedy actresses according to the director of the film's sequel.


Question: Reporters with secret cameras posed as car buyers to gather evidence of how unscrupulous dealers operate the mileage fraud.
Trading Standards has confirmed that car clocking is on the increase.
"We would be hard pushed to identify a town or city where there isn't a clocker or a number of clockers operating," Trading Standards said.
The profits from clocking can be substantial and there is evidence unscrupulous dealers and even members of the public are winding cars back by as much as 100,000 miles.
BBC Consumer correspondent Martin Cassidy said the rules of valuing a second hand car are simple.
"The value of a vehicle is based on the make and model as well as the year of manufacture but condition and mileage are also significant factors," he said.
Mr Cassidy said the evidence was that for an increasing number of cars in Northern Ireland, the mileage you see is not the mileage the vehicle has actually done.
Justin Gawn, a first time buyer from Bangor was one of the victims of the car clockers.
He said he thought he was buying a car that had travelled just over 86,000 miles.
But when he actually purchased the vehicle, his suspicions were aroused and he began to check the car's history.
It turned out that Justin's car had actually travelled in excess of 100,000 miles and he had to embark on a lengthy legal battle for compensation.
His story is by no means unique, similar complaints have resulted in a string of prosecutions against the clockers.
The authorities say mileage fraud is becoming a major problem and the BBC investigation paid a visit to a car dealer who has been prosecuted for clocking.
Armed with secret cameras, two reporters went to have a look at Seven Towers Autos near Ballymena.
The Peugeot they asked to test drive was advertised on the internet with a guaranteed mileage of 117,000.
That was the mileage displayed on the dashboard and confirmed by a salesman.
But official records told a different story.
According to the Driver and Vehicle Licensing Authority, the Peugeot had an MOT test in April 2010 when the mileage was recorded at over 182,000 miles.
Somewhere in the intervening time the Peugeot car had unaccountably lost around 65,000 miles.
Seven Towers Autos declined to be interviewed by the BBC but claimed the mileage problem would have been spotted at the point of sale.
Despite the introduction of digital mileage displays and MOT mileage records, clockers continue to operate.
While older mileage displays could be wound back mechanically, the newer digital displays can be altered by a whole array of gadgets which are available on the internet for a little over Â£100.
Anyone who has encountered a problem with car clocking should contact Trading Standards.

Answer:
An undercover investigation by BBC NI has exposed a growing problem with mileage fraud.


