Generate an appropriate single-sentence summary for the given text such that it includes the main topic of the text.

The coalition said it wanted to support UN efforts for a political solution and help stop coronavirus spread, though no cases have been reported in Yemen. UN Secretary General António Guterres welcomed the move. But a senior official in the rebel Houthi movement, which is battling pro-government forces backed by the coalition, called it a "ploy". Hours after the coalition's ceasefire announcement on Wednesday night, both sides accused one another of having launched attacks. The five-year conflict has devastated Yemen, reportedly killed more than 100,000 people, and triggered what the UN considers the world's worst humanitarian crisis. What did the coalition say? Spokesman Col Turki al-Malki announced that the coalition would begin a ceasefire at midday local time (10:00 GMT) on Thursday because it was "determined to create a conducive environment for the UN envoy's [peace] efforts, and to alleviate the suffering of the brotherly people of Yemen and support the efforts towards combating the spread of Covid-19 pandemic". He added that the two-week period could be extended to "allow for appropriate conditions" for the warring parties to discuss the UN envoy's "proposals on steps and mechanisms to implement a permanent ceasefire in Yemen" and "a comprehensive political solution in Yemen". The UN secretary general and his envoy, Martin Griffiths, welcomed the initiative. "I now call upon the government of Yemen and [the Houthis] to follow through on their commitment to immediately cease hostilities. I also call on the government and the Houthis to engage with each other, in good faith and without preconditions," Mr Guterres said. "Only through dialogue will the parties be able to agree on a mechanism for sustaining a nationwide ceasefire, humanitarian and economic confidence-building measures to alleviate the suffering of the Yemeni people, and the resumption of the political process to reach a comprehensive settlement to end the conflict." A significant move This is Saudi Arabia's most significant move to try to find a way out of its costly military campaign in Yemen. The coalition statement suggests its unilateral ceasefire was sparked by the very real threat posed by the coronavirus in a country whose health system is barely functioning. But another wake-up call dates back to last September when the Kingdom's vital oil facilities came under fire in a spectacular attack blamed on Iran. Saudi Arabia shifted gear, embarking on secret talks with senior Houthi officials to secure their border, end Houthi missile strikes on its territory, and try to pull them away from Iran. But in recent months, Houthi forces have kept advancing militarily, encouraging more hawkish Houthi elements. Sources say senior Houthi leaders support a negotiated end to this war. But they're also digging in. Even if UN talks begin, it will be a long time before they end with the political solution Yemen desperately needs. How did the rebels respond? Mohammed al-Bukhaiti, a senior member of the Houthi movement's Political Bureau, told Al-Mayadeen TV before the ceasefire began that the rebels wanted "a complete cessation of the war and the lifting of the siege once and for all". "If any ceasefire does not include the removal of the siege on Yemen, that would be the continuation of the Saudi war," he said, referring to the coalition's de facto blockade of rebel-held Yemen. "The aggression's [coalition] move to announce a ceasefire was just another ploy," he added. Houthi spokesman Mohammed Abdulsalam tweeted that the rebels had sent the UN a comprehensive proposal that would "lay the foundations for a political dialogue and a transitional period". Houthi-run Al-Masirah TV reported that shortly after the ceasefire announcement the coalition warplanes struck several positions in Saada, Amran and Bayda provinces. Yemen's information minister meanwhile said that the Houthis launched missiles at Hudaydah and Marib. Why is there a war in Yemen? Yemen has been devastated by a conflict that escalated in March 2015, when the Houthis seized control of much of the west of the country and forced President Abdrabbuh Mansour Hadi to flee abroad. Alarmed by the rise of a group they believed to be backed militarily by Iran, Saudi Arabia and eight other Arab states began a campaign aimed at restoring Mr Hadi's government. At the start of the war, Saudi officials forecast that it would last only a few weeks. But five years of military stalemate have followed. The UN has verified the deaths of at least 7,500 civilians, with most caused by coalition air strikes. But a monitoring group has estimated that the fighting has killed 112,000 people, including 12,600 civilians. The fighting and blockade have also triggered the world's worst humanitarian crisis. Some 24 million people - 80% of the population - need humanitarian assistance, and almost 10 million are considered "one step away from famine".
A unilateral two-week ceasefire called by the Saudi-led coalition fighting in Yemen has come into effect.

A passenger waiting to take off on another plane said one aircraft on the ground appeared to clip a stationary plane at about 07:50 BST. A spokesman for the airport said it involved Ryanair and Jet2 planes but there were no passengers on board either at the time. The airport said some flights had been delayed due to the foggy conditions. Ryanair said its plane was a training aircraft and the crew was following instructions from air traffic control when the wing tip hit the Jet2 plane. A Ryanair statement said: "This aircraft was under the instruction of East Midlands Traffic Control at the time and the crew were following correct taxi lines as per ATC procedure. "This B737-700 aircraft was due to be used for training in East Midlands so no customers were affected." The airport said the airlines would inspect the planes and assess any damage. Aviation expert, Julian Bray said although there were no injuries, it would have still caused some damage to the planes. "Perhaps somebody jumped the gun, perhaps an incorrect instruction was given or perhaps somebody misunderstood the instructions," he said. "There are hundreds of thousands of aircraft movements every day and sometimes you hear of things like this. "But it probably taught the trainee pilots a lesson to take extra care of what's around you." A spokeswoman for Jet2 said its aircraft had been "parked correctly" at the time, and it would "co-operate fully with the relevant authorities to help them investigate". The Air Accidents Investigation Branch has confirmed it is investigating. Follow BBC East Midlands on Facebook, Twitter, or Instagram. Send your story ideas to eastmidsnews@bbc.co.uk.
Two aeroplanes have been involved in a minor collision at East Midlands Airport during morning fog.

Bay spotted the 20-year-old starring in "a great little Irish movie", What Richard Did, which is out this Friday. "This kid is the real deal," said the producer, in a post on his website. "He is an Irish kid that came to America with 30 bucks in his pocket. Pretty ballsy. Seriously who does that?" Reynor will star opposite Mark Wahlberg in Transformers 4. Based on the robot toy franchise, it is expected to be released in June 2014. Bay has denied rumours that it would be a remake of the earlier films. He wrote: "Transformers 4, is not a reboot. That word has been floating around on the net. "This movie takes place exactly four years after the war in Chicago," from Transformers 3, he added. "The story makes a very natural transition, and reason as to why we have a whole new cast. "This Transformers will feel very different than the last three. We are embarking on a new trilogy." Prior to Transformers 4, Jack Reynor has been filming The Delivery Man, a movie about a sperm donor that also stars Vince Vaughn. He will also feature in a new drama called Cold, with Merlin actor Eoin Macken.

Unknown Irish actor Jack Reynor has won a lead role in the fourth Transformers movie, director and producer Michael Bay has confirmed.

