The suspect was shot by an NYPD officer and is in custody after the incident.
A suspect has been taken into custody and eight people are dead after police responded to a terror attack in New York City.
Another 11 victims suffered serious but non-life-threatening injuries Tuesday when a rented pickup truck plowed into a crowded bike path on Manhattan's West Side. Six males died at the scene, police said. Two people were pronounced dead at a hospital.
Witnesses said the driver of the rented Home Depot truck struck several people and then emerged from the vehicle screaming "Allahu Akbar," Arabic for "God is Great," while carrying a weapon in each hand, authorities said.
He leased the vehicle at the home repair chain's Passaic, N.J., location, according to reports.
A paintball gun and a pellet gun were also found at the scene, NYPD Commissioner James O'Neill told reporters Tuesday evening.
The driver was identified as Sayfullo Saipov, a 29-year-old truck driver who came to the U.S. in 2010 from Uzebekistan, CBS News reported. His most recent address was in Tampa, Fla., but he also had addresses in Ohio and New Jersey since immigrating to America.
"This was an act of terrorism... aimed at innocent civilians," New York City Mayor Bill de Blasio said. "This action was intended to break our spirit."
But that will never happen, the mayor added.
President Trump weighed in several times on Twitter, including a post that read, "NOT IN THE U.S.A.!"
An Associated Press photographer on the scene reported seeing at least two motionless bodies on the path covered by tarps. Bikers, pedestrians and a school bus were struck during the apparent attack, authorities said. Two children and two adults in the bus were injured.
Gov. Andrew Cuomo said the suspect "meant to cause pain and harm." New Yorkers, he said, are strong and he urged residents "to live your lives" without fear. "We will be vigilant," he said. There will be "more police everywhere."
Tuesday night's annual Halloween parade in Greenwich Village went on as scheduled.
The driver was shot in the abdomen by a police officer on the scene, Commissioner O'Neill said.
The suspect was being treated at Bellevue Hospital, according to local reports. He entered the bike path at Houston Street and left it at Chambers Street, where he crashed into the bus.
Images from the scene show the badly damaged Home Depot vehicle. Footage also shows damaged bicycles strewn across a bike path, while emergency personnel helped the injured onto stretchers.
The attack unfolded in the area of West and Chambers streets, just blocks from the World Trade Center memorial.
Police say the suspect acted alone.