A cyclist was left in critical condition when he was struck by a private sanitation truck while riding in Brooklyn on Sunday night, cops said.

The victim was traveling northbound on 3rd Avenue near 12th Street in Gowanus when he was hit by a truck making a left hand turn at around 9:30 p.m., according to police.

The cyclist was rushed to Brooklyn Methodist Hospital where he was listed in critical condition.

The driver of the sanitation truck remained at the scene.

No arrests were made on Sunday night.