London police are investigating what they are calling a “terrorist incident” outside the British Parliament building, an apparent multi-stage attack that left at least one woman dead and 10 injured, The New York Times reported.
On Westminster Bridge, which leads to Parliament, the driver of a large vehicle began mowing down pedestrians, killing a woman. Outside the gates of Parliament, a man stabbed a police officer before being shot by cops.
Witnesses also claimed that they heard gunfire near Portcullis House, a government office building, the Times reported.
Police told reporters that there have been a "number of casulties," including law enforcement, but did not specify how many.
Prime Minister Theresa May was rushed back to her office, where she is safe, the Times reported. The House of Commons remains on lockdown, with members of Parliament inside.
“[Although] we remain open minded to the motive, a full counter terrorism investigation is already underway,” said Metropolitan Police Commander BJ Harrington.
The attacks occurred on the one-year anniversary of suicide bombings in Brussels that killed 32 people.
"We obviously condemn today's attack in Westminster, which the United Kingdom is treating as an act of terrorism," White House press secretary Sean Spicer said at his daily press briefing this afternoon. "We applaud the quick response that the British police and their first responders made to the situation. The victims in this are in our thoughts and our prayers.”
Earlier today, President Trump briefly commented on it before a roundtable, saying “some big news having to do with London just happened.”