Update: At least five people have been killed and 20 injured in a chaotic incident that spanned several locations near the British parliament.
Update: UK investigators considering possibility that London attack was inspired by Islamic State propaganda – European government official.
Update: UK’s top anti-terrorism officer says police operation is ongoing, can call on military support if needed.
Update: Four people dead, including police officer, and 20 injured in UK parliament attack – anti-terrorism officer.
Update: Three French schoolchildren hurt in London attack – French officials.
Update: British PM Theresa May to convene emergency security committee after Westminster incident.
Update: Three French citizens injured in London attack – French diplomatic source.
Update: London ambulance service says it has treated few patients on Westminster Bridge.
Update: Another woman pulled alive from River Thames after London attack, has serious injuries.
Update: British police say full counter terrorism investigation is under way after London attack.
Update: One woman killed by attacker: Report.
Update: Emergency services staff provide medical attention close to the Houses of Parliament in London.
Update: Roads are closed off by police after sounds similar to gunfire have been heard close to the Houses of Parliament, London.
Update: U.S. State Department says closely following ‘concerning situation’ out of UK parliament.
Update: Suspect vehicle reported outside UK parliament, area evacuated: BBC citing police.
Update: We are treating this as a terrorist incident until we know otherwise: Metropolitan Police UK.
Update: Deputy speaker announces that UK Houses of Parliament suspended after shooting incident.
Update: UK Prime Minister spokesman says that PM Theresa May is safe after the attack in parliament.
Update: A leader of House of Commons says that a policeman has been stabbed inside parliament.
London: A policeman was stabbed and an assailant was shot in the vicinity of the Parliament building in London, United Kingdom (UK) on Wednesday, in what police are calling a terror-related incident.
An eyewitness told the Press Association he heard shots being fired and saw two people apparently injured on the ground. A Reuters photographer also reported seeing at least 12 injured people on Westminster Bridge near the Parliament, after a vehicle struck several people, and photos showed a car plowed into railings.
David Lidington, leader of the House of Commons, said that the alleged assailant was shot outside the Parliament building by armed police.
According to reports, the incident unfolded as a man tried to gain entry into the Parliament via the main entrance and stabbed a police officer.
Plain-clothes armed officers warned him before shooting a number of rounds. He was later seen being covered by blankets, presumed dead.
The House of Commons session has been suspended and the Palace of Westminster has been put on lock down, an official said.
The Metropolitan Police said the incident on Westminster Bridge is being treated as a terrorist incident until investigation indicates otherwise.