According to Reuters, two people have been shot and at least a dozen injured.
Westminster attack: PC Keith Palmer named as police officer killed – as it happened
Five dead, including police officer and attacker, and 40 injured after assault on Houses of Parliament
Thu 23 Mar 2017 01.58 EDT
First published on Wed 22 Mar 2017 05.11 EDT- Summary
- Front pages around the world
- Australian resident injured in London attack
- Australian PM pays tribute to 'mother of parliaments'
- What we know so far
- Five South Korean tourists injured
- Police officer named as PC Keith Palmer
- Prime minister's statement on today's attack
- Westminster attack: what we know
- Jeremy Corbyn: attack has shocked the country
- Westminster lockdown over
- Full story of MP Tobias Ellwood's heroism
- Home Secretary says British values "will never be destroyed"
- Police press conference
- Four people have died, police confirm, at least 20 injured
- Picture of suspected attacker
- Police officer has been killed, the Guardian understands
- French PM confirms French students injured in London attack
- At least 10 injured, LAS confirm
- Police press conference
- One woman has died, others left with "catastrophic" injuries
- Video: footage of people on Westminster Bridge
- What we know so far
- Police officer stabbed, and attacker shot by armed officers, MPs told
- Reports of shooting at House of Commons
- MSP resume debate on the SNP's call for a second independence referendum
- Lunchtime summary
- Urgent question on laptop flight ban
- Snap PMQs verdict
- PMQs
- Livingstone urges Corbyn to suspend around 12 disloyal MPs
- Peers say Brexit with no trade deal would cause 'significant damage' to service sector
Live feed
- Summary
- Front pages around the world
- Australian resident injured in London attack
- Australian PM pays tribute to 'mother of parliaments'
- What we know so far
- Five South Korean tourists injured
- Police officer named as PC Keith Palmer
- Prime minister's statement on today's attack
- Westminster attack: what we know
- Jeremy Corbyn: attack has shocked the country
- Westminster lockdown over
- Full story of MP Tobias Ellwood's heroism
- Home Secretary says British values "will never be destroyed"
- Police press conference
- Four people have died, police confirm, at least 20 injured
- Picture of suspected attacker
- Police officer has been killed, the Guardian understands
- French PM confirms French students injured in London attack
- At least 10 injured, LAS confirm
- Police press conference
- One woman has died, others left with "catastrophic" injuries
- Video: footage of people on Westminster Bridge
- What we know so far
- Police officer stabbed, and attacker shot by armed officers, MPs told
- Reports of shooting at House of Commons
- MSP resume debate on the SNP's call for a second independence referendum
- Lunchtime summary
- Urgent question on laptop flight ban
- Snap PMQs verdict
- PMQs
- Livingstone urges Corbyn to suspend around 12 disloyal MPs
- Peers say Brexit with no trade deal would cause 'significant damage' to service sector
These are from the BBC’s Laura Kuenssberg.
Lidington says the advice from the police is that the sitting should remain suspended, and that MPs should remain in the chamber.
David Lidington, the leader of the Commons, is making a statement to MPs.
He says an alleged assailant was shot by police.
He says he cannot go into further details.
Luke Steele, a Campaigns Manager for Animal Aid has tweeted a picture from the scene.
MPs were told to wait in the Commons chamber when the sitting was suspended.
Unconfirmed reports of a car involved in the incident on Westminster Bridge, it is being treated as a “firearms incident” say police at the scene.
Radosław Sikorski, a senior fellow at CES Harvard has tweeted that a car has hit five people.
An air ambulance has landed on Parliament Square.
More from the Met police.
ITV’s Paul Brand has a periscope of the scene outside the Houses of Parliament.