A smoky disabled train is being evacuated by firefighters in Queens.

The fire department is accessing the train with bucket ladders near the Sutphin Blvd-Archer Avenue station.

The MTA is bringing in a backup train to bring passengers to the 121st Street station at 121st Street and Jamaica Avenue.

Firefighters are going car to car to check on subway passengers

It’s not clear yet what caused the train to start smoking.

Fortunately, no injuries have been reported.

As a result, J trains are suspended in both directions.

The MTA is urging commuters to use alternative methods of transportation.

LIRR is cross-honoring MetroCard holders and OMNY users between Penn Station, Grand Central Madison, Atlantic Terminal and Jamaica.

For alternative service between Manhattan and Brooklyn, the MTA says to consider nearby ACL trains, and for service along Jamaica Ave to Jamaica Center-Parsons/Archer, take a Q24 or Q56 bus.

Riders can find the latest updates on the MTA’s website.