Airports of London cannot be expanded due to the docks on either side. It is also the only airport serving London which does not operate at night. A light rail service from London City Airport DLR station, which adjoins the terminal building of London City Airport, links it to the financial district of the City of London at Bank and Monument stations, which offer interchanges with London Underground. Located in the London Borough of Hillingdon, Heathrow is by far the largest of London's airports and considered the main gateway into the United Kingdom for non-European visitors. Heathrow has four terminals and two parallel
Reactions to the 2005 London bombings Reactions to the 2005 London bombings The 7 July 2005 London bombings were a series of suicide attacks carried out by homegrown terrorists on London's public transport network during the morning rush hour. The bombings, three on the London Underground and one on a bus, killed 52 people and prompted a massive response from the emergency services, and in the immediate aftermath the almost-complete shut down of the city's transport system. Over the following hours and days there were several security alerts throughout the United Kingdom, and in some foreign cities. London largely returned to normality in the following days,