Terror attack unfolded

folded. He said he had previously warned about a potential security blind spot at the parliament building which could be exploited by terrorists.

Speaking from inside the chambers after the attack, Mr MacNeil said he had raised concerns about the lack of “ballistic cover" to shield officers in the event of an assault on Parliament's St Stephen's Entrance.

The entrance was not the target of yesterday’s attack, but the MP, who is chairman of the Commons International Trade Committee, was worried about the possible security loophole.

“I spoke to the Commons Serjeant-At-Arms about the lack of ballistic cover for officers to shield behind in the event of an attack and that was acted upon. There are now protective steel plates up there," said Mr MacNeill last night.

Banff and Buchan MP Dr Eilidh Whiteford was also at Parliament when the attack occurred yesterday.

HORRIFIC: Emergency services deal with a casualty outside the Palace of Westminster in London