Theresa May came out into Downing Street tonight to tell the world that any attempt to defeat the values that Parliament stood for was “doomed to failure”.

She said the streets of Westminster, where the attack took place, were engrained with a spirit of freedom that echoed in some of the further corners of the globe. 

Praising the police and security services for their exceptional bravery she said the fact that they had lost one of their own today only made their calmness and professionalism under pressure all the more remarkable. 

Parliament had been packed at the time of the incident with politicians, tourists and school children too. It was quickly cordoned off as medics and emergency services arrived. 

Westminster went into lockdown and some MPs were held in the Commons chamber, Others were moved to Westminster Abbey for safety. 

As politicians left this evening they spoke of their shock and sadness and praised the police officer, Keith Palmer, who lost his life protecting politicians and parliament. The best and the bravest, one MP said.

Flags are to be lowered to half-mast over Downing Street as a mark of respect to the people who died says political correspondent Eleanor Garnier.

Source-BBC