NEW YORK, Oct 31 -?Eight people were killed and?15 others injured in New York City on Tuesday afternoon after a vehicle drove down a bike path that runs alongside the Hudson River in Manhattan, police said.

Emergency crews attend the scene of an alleged shooting incident on West Street in Manhattan, New York, U.S., October 31 2017. [Photo/Agencies]

The Latest on a vehicle driving onto a bike path and gunfire near the World Trade Center site and memorial (all times local):4:35 p.m.

A law enforcement official says at least?eight people were killed and at least 15 people were struck by a rented van 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 rented Home Depot van drove onto a busy bicycle path and struck several people, then the driver 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.

4:25 p.m.

New York City police say there are "several fatalities and numerous people injured" after a motorist drove onto a busy bicycle path and struck several people, then emerged from the vehicle screaming and firing something that appeared to be a gun.

The department writes on Twitter that the suspect got out of the vehicle displaying imitation firearms and was shot by police officers. Police say the person is in custody.

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

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

4 p.m.

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.

3:50 p.m.

Police are responding to a report of gunfire a few blocks from the World Trade Center site and memorial, and witnesses say a vehicle drove down a popular bike path and struck pedestrians and cyclists.

The New York Police Department posted on its Twitter feed that one person was in custody Tuesday.

An Associated Press photographer on the scene saw at least one person lying motionless on the Manhattan bike path.

A large number of police vehicles could be seen near a community college and a high school and a few blocks north of the National Sept. 11 Memorial.

It's unclear how many people have been injured or whether anyone was killed.

3:35 p.m.

Police are responding to a report of gunfire a few blocks from the World Trade Center site and memorial.

The New York Police Department posted on its Twitter feed that one person was in custody Tuesday.

A large number of police vehicles could be seen in Manhattan near West Street and Chambers Street, which is near a community college and a high school and a few blocks north of the National Sept. 11 Memorial.

It's unclear if anyone was injured.

AP/Reuters