March 23 (Reuters) - An Air Canada Express

regional jet collided with a ground vehicle upon landing at New

York's LaGuardia airport on Monday evening, according to flight

tracking website Flightradar24, in an incident that closed the

airport.

The CRJ-900 plane, which was coming from Montreal, struck

the vehicle at a speed of about 24 miles per hour (39 kph),

Flightradar24 said. The jet was operated by Jazz Aviation, Air

Canada's ( ACDVF ) regional partner.

The U.S. Federal Aviation Administration (FAA) issued a

ground stop for all planes at the airport until 0530 GMT,

according to a notice from the regulator.

The FAA notice showed that the reason for the halt at the

airport was an emergency and there was a high probability of an

extension, without specifying any details.

LaGuardia's website showed arriving planes had been diverted

to other airports or returned to their point of origin.

In a separate notice to airmen, the FAA said that the

airport could be shut until 1800 GMT.

Unverified footage on social media showed damage to the nose

of the plane, as it tilted upward. Reuters could not immediately

verify the footage.

The New York Fire Department in a statement said that it was

responding to a reported incident involving a plane and a

vehicle on the runway at LaGuardia airport, but did not provide

further details.

Air Canada ( ACDVF ) and the FAA did not immediately respond to

requests for comment.