Footage has emerged of the suspected New York terror attacker running through Manhattan's streets, just moments after a truck ploughed into people on a cycle lane.

Sayfullo Saipov, a 29-year-old man reportedly from Uzbekistan, has been named as the suspect in the truck-ramming attack that killed eight and injured more than 12.

Footage recorded by a bystander appears to show Saipov brandishing a gun as he weaves through traffic just moments after the incident.

Officials later said he was carrying pellet and paintball guns. He was apprehended by police after being shot in the stomach, but is expected to survive.

Police said they were treating the incident as a "terrorist attack" and the FBI has taken charge of the investigation.

Nobody has made a claim of responsibility for the incident and Isis’s evening “news bulletin” did not mention the attack.

Saipov may have left a note pledging allegiance to Isis in or near the truck, law enforcement officials told several US media outlets, however this detail has not been confirmed.

New York Truck attack Show all 6 1 /6 New York Truck attack New York Truck attack Investigators inspect the truck following the attack Investigators inspect a truck following a shooting incident in New York on 31 October 2017. Several people were killed and numerous others injured in New York on Tuesday when a suspect plowed a vehicle into a bike and pedestrian path in Lower Manhattan, and struck another vehicle on Halloween, police said. A suspect exited the vehicle holding up fake guns, before being shot by police and taken into custody, officers said. The motive was not immediately apparent. Getty New York Truck attack A paramedic looks at a body along the bike path A paramedic looks at a body covered under a white sheet along the bike path 31 October 2017, in New York. A motorist drove onto a busy bicycle path near the World Trade Center memorial and struck several people Tuesday, police and witnesses said. AP Photo/Bebeto Matthews New York Truck attack The truck driver collided with a school bus Authorities respond near a damaged school bus Tuesday, 31 October 2017, in New York. A motorist drove onto a busy bicycle path near the World Trade Center memorial and struck several people, police and witnesses said. Two adults and two children were on the bus at the time. AP Photo/Bebeto Matthews New York Truck attack A young girl reacts to the scene A young girl reacts as police officers secure an area following a shooting incident in New York on 31 October 2017. Several people were killed and numerous others injured in New York on Tuesday after a vehicle plowed into a pedestrian and bike path in Lower Manhattan, police said. 'The vehicle struck multiple people on the path,' police tweeted. 'The vehicle continued south striking another vehicle. The suspect exited the vehicle displaying imitation firearms & was shot by NYPD.' DON EMMERT/AFP/Getty Images New York Truck attack Police officers arrive at the scene Police officers arrive at the scene following a shooting incident in New York on 31 October 2017. Multiple people were hurt in downtown Manhattan, US media reported after police confirmed that they were responding to reports of a shooting. Police said they had mobilized to the scene in Lower Manhattan and that one person was in custody, giving no further details. DON EMMERT/AFP/Getty Images New York Truck attack Emergency personnel respond to truck attack in lower Manhattan Emergency personal respond after reports of multiple people hit by a truck after it plowed through a bike path in lower Manhattan on 31 October 2017 in New York City. According to reports up to six people may have been killed. Kena Betancur/Getty Images

New York Governor Andrew Cuomo told reporters the attacker is likely to have acted alone. Past terrorist attacks have involved assailants who offered their allegiance to organisations like Isis despite not being active members or recruited in coordinated plots.

"There’s no evidence to suggest a wider plot or a wider scheme," Mr Cuomo said. "These are the actions of one individual meant to cause pain and harm and probably death."