UPDATE: Runaway Truck and Shooting in New York, 8 Reported Dead

UPDATE: New York City's mayor says a truck attack in lower Manhattan killed eight people and was a "cowardly" act of terror.

Mayor Bill de Blasio says the attack on a bike path near the World Trade Center "was an act of terror, and a particularly cowardly act of terror aimed at innocent civilians."

New York Gov. Andrew Cuomo called it a "lone wolf" attack. He says there's no evidence to suggest it was part of a wider plot.

Witnesses described a chaotic scene of a white pickup truck hitting bicyclists on a path near the World Trade Center and then slamming into a school bus. They say the driver got out of his vehicle brandishing what appeared to be a gun in each hand.

UPDATE: The White House says President Donald Trump has been briefed on the vehicle that drove onto a bike path near the World Trade Center and struck several people.

White House spokeswoman Sarah Huckabee Sanders says the president and New York native has been briefed by White House chief of staff John Kelly and "will be continually updated as more details are known."

Sanders says, "Our thoughts and prayers are with all those affected."

A law enforcement official says at least six people were killed and at least nine people were injured when a rented van struck them on Tuesday.

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UPDATE: A law enforcement official says at least six people were killed and nine injured when a rented van drove on a bike path near the World Trade Center in New York City.

The official was familiar with the investigation but wasn't authorized to speak publicly and spoke on condition of anonymity.

The driver of the rented Home Depot van emerged from the vehicle screaming. The official says the man had two imitation firearms.

Police say the man was shot by officers and is in custody.

The official says it is being investigated as a possible case of terrorism.

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NEW YORK (AP) — Police and witnesses say a motorist drove onto a busy bicycle path near the World Trade Center memorial and struck several people, then emerged from the vehicle screaming and firing something that appeared to be a gun.

An Associated Press photographer on the scene Tuesday witnessed at least two bodies lying motionless on the path beneath tarps.

The New York Police Department posted on its Twitter feed that one person was in custody. The department says it's unclear whether anyone was shot.

A man who was riding in an Uber along the West Side Highway near Chambers street says he saw several bleeding people on the ground after a truck struck several people.

A witness said the truck had also collided with a small bus and one other vehicle.