At least eight people have been killed and 11 seriously injured in New York after the driver of a truck mowed down people on a cycle path in Lower Manhattan.
A 29-year-old man who emerged from the white pick-up truck was shot by a police officer and arrested.
Officials later declared it a terror attack. Media named him as Sayfullo Saipov, an immigrant who came to the US in 2010.
A law enforcement source told CBS News a note was found in the truck that referred to so-called Islamic State.
New York Police Department Commissioner James O’Neill said the injured had “serious but non-life threatening injuries”.
He described what had occurred, based on the latest information he had received. Shortly after 3pm local time, a rented vehicle struck cyclists and pedestrians while being driven along the West St-Houston St path for many blocks.
The vehicle then hit a school bus, injuring two adults and two children on board, and came to a halt.
The driver emerged holding what appeared to be two handguns and made a statement “consistent with a terror attack”.
He was then shot in the abdomen by a police officer stationed near the scene and taken into custody.
the White House said President Donald Trump had been briefed on the incident.
In separate tweets, he said:
“In NYC, looks like another attack by a very sick and deranged person. Law enforcement is following this closely. NOT IN THE U.S.A.!”
“We must not allow ISIS [Islamic State] to return, or enter, our country after defeating them in the Middle East and elsewhere. Enough!”