Terrorism
They were held in London and Birmingham.
Prime minister says terror 'doomed to failure'.
'MPs then crawled on their hands and knees away to safety'.
'People running like crazy.'
Minister's brother died in 2002 Bali bombings.
Gunfire was heard around 3pm in central London.
Taken from Parliament at speed.
The ban will be introduced 'in the coming days'.
Inbound flights from Turkey, Lebanon, Jordan, Egypt, Tunisia and Saudi Arabia affected.
More than 200 officers were involved.
About Terrorism
Terrorism in the United Kingdom is considered by the Home Office to pose a "significant threat" to security and peace. Islamic extremism, far-right attacks and North Irish terrorists have posed the most recent threats to the United Kingdom. In the past 10 years, there have been several attempts to commit terrorist attacks in Britain. In August 2006 eleven individuals tried to detonate liquid explosives carried on board several airliners travelling from the UK to the US, with 24 suspects arrested in and around London. In June 2007, a car rammed into a terminal at the Glasgow International Airport. No casualties, aside from those of the driver, resulted. The most serious terrorist offence in recent times, since the Northern Irish peace process, was the 7 July 2005 London bombings conducted by four separate Islamist extremist suicide bombers, killing 56 people and injuring 700.