UK Parliament attack: As it happened

Britain: Shots were heard being fired near Britain's Parliament complex in central London on Wednesday leading to the lockdown within the House of Commons chamber.

At least a dozen of people were left injured after a car tried to mow down pedestrian and cyclists on the Westminster bridge. 

Here's the latest updates:

- The name of the terror suspect is circulating. He is an Islamist hate preacher born in London. Unconfirmed right now.

- MEA Sushma Swaraj tweets: "Indian High Commission is there to help all Indian nationals in London. Phone numbers - 02086295950 & 02076323035"

- Chancellor Angela Merkel said that Germany stood by Britain 'firmly and resolutely' following the deadly terror attack near the British parliament

- Minister of External Affairs Minister Sushma Swaraj tweets: "I am in constant touch with Indian High Commission in London. There is no Indian casualty reported so far." 

- UK Parliament shootout: Police say that four people dead in London attack including one police officer, attacker; at least 20 injured

- Woman pulled alive from River Thames after London attack, has serious injuries: Reuters

- UK Parliament shootout: London police say they believe there was only one attacker

- US Department of Homeland Security to lend support to Britain's investigation of parliament shooting, says security posture in the United States unchanged after the attack: Reuters

- UK Parliament shootout: School kids are being evacuated from Parliament after the terror attack

- We condemn today's attack in Westminster, says White House press secretary Sean Spicer: CNN

- Emergency services respond after an incident on Westminster Bridge in London.

- United States President Donald Trump speaks to UK PM Theresa May via phone following the London terror attack.

- London's Metropolitan Police tweets: "Please report anything suspicious to the Anti-Terrorist Hotline 0800 789 321. In an emergency call 999"

- Tourists got stuck in mid-air on the popular London Eye attraction for around an hour today following a suspected terror attack outside the Houses of Parliament: AFP

- New York Police is bringing in 'heavy weapons' to Grand Central, City Hall and other locations in wake of attack near UK Parliament: CBS News

- Police officer stabbed in United Kingdom Parliament attack died at scene.

- Also Read: UK Parliament shootout: Two dead, over 10 injured; London Police say 'more casualties feared'

- Indian government strongly condemns Westminster terrorist incident, condoles loss of life. No place in democracies and civilised societies for terrorism, says MEA officials: ANI

- French PM says French students have been hurt in London attack: AFP 

- There is a COBR meeting taking place today, a spokesman at the office of British PM Theresa May said.

- British PM Theresa May to chair emergency meeting after what the police described as a 'terrorist incident' outside the parliament building.

- UK Parliament attack took place on the first anniversary of the Brussels bombings that claimed at least 32 lives last year.

- Crowds being moved out of Parliament Square, policeman tells BBC; suspect vehicle outside UK Parliament.

- Three French citizens injured in London attack: French diplomatic source.

- Scotland Yard says it was called to firearms incident on Westminster Bridge amid reports of several people injured.

- One woman killed in Parliament attack.

- London Ambulance says it has treated at least 10 people on Westminster bridge.

- London Police says 'there are more casualties'; Mayor asks citizen to be vigilant.

- Scottish parliament suspends independence debate after the London attack.

- Sniffer dogs dispatched in and around the Parliament complex.

- Assailant shot by police around the Parliament complex.

- Westminster tube station closed.

- Police secure the area close to the Houses of Parliament in London.

- London Police say attack at UK Parliament being treated as "terrorist incident until we know otherwise".

- At least 200 MPs still inside Parliament.

- PM Theresa May evacuated to safe location.

- Many feared injured in attack, number of casualties unconfirmed.

- Underground services have been suspended.

- UK Parliament security breached.

- Car mows down civilians, pedestrians on Westminster bridge.

- Assailants enter Westminster; one of them carrying a knife stabs policeman at Palace of Westminster.