Source: Mary Altaffer/AP

Updated 10.50pm

A VEHICLE HAS hit a number of pedestrians at Times Square in New York.

The New York Police Department has said one person is dead and 22 have been injured. The incident is not believed to be terrorism-related.

Four of those injured are described as being in a critical condition.

BREAKING: Authorities say 1 dead, 22 hurt in Times Square car crash caused by man with 2 prior driving-while-intoxicated arrests. — The Associated Press (@AP) May 18, 2017 Source: The Associated Press /Twitter

Police said that a 26-year-old male driver named Richard Rojas has been arrested and is being tested for alcohol.

A law enforcement official said the man has two previous arrests for drink driving.

The crash happened at noon local time on a hot day that brought large crowds of people into the streets.

Videos posted online showed steam or smoke pouring from the car for a few moments after it stopped moving.

Witnesses have said the driver appeared to be intoxicated.

Richard Rojas, 26 y/o of the #Bronx (driver) drove at a high rate of speed. 22 injured (4 critical) and one person is deceased. #TimesSquare — NYPD NEWS (@NYPDnews) May 18, 2017 Source: NYPD NEWS /Twitter

“He’s just mowing down people,” said witness Asa Lowe, of Brooklyn, who was standing outside a shop when he heard screaming.

He didn’t stop. He just kept going.

After the car struck a barricade and stopped, the driver climbed out of his vehicle, Lowe added.

He just started running until people tackled him down. Citizens just reacted.

What's happening in Times Square?? This car was in the sidewalk and people are on the streets pic.twitter.com/PsepRtfrAr — gb (@gb__) May 18, 2017 Source: gb /Twitter

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One male in custody in the #TimesSquare vehicle collision.

It is believed to be an isolated incident, it remains under investigation. — NYPD NEWS (@NYPDnews) May 18, 2017 Source: NYPD NEWS /Twitter

Times Square is typically packed with tourists and office workers. It lies in the heart of Midtown Manhattan and leads to Broadway, New York’s famed theatre district.

Irish citizens

We are aware of the accident in Times Square. Working closely with the authorities. For consular assistance call: +12123192555 — Irish Consulate NYC (@IrelandinNY) May 18, 2017 Source: Irish Consulate NYC /Twitter

The Irish Consulate in New York said it is aware of the incident and “working closely with authorities”.

In a statement, Foreign Affairs Minister Charlie Flanagan said: “I am aware of the terrible incident in New York this afternoon, which has resulted in a number of casualties. My Department are monitoring the situation closely through Consulate General New York and the Consular Division in Dublin.

Irish citizens with concerns can call +353 (1) 4082000 for assistance.

“On behalf of the Irish government, I wish to express our condolences and solidarity with the people of New York at this time,” Flanagan said.

Contains reporting from AP and © AFP 2017