A 33-year-old bicyclist was fatally struck by an MTA bus in Williamsburg on Wednesday night, police said.

The cyclist was hit near the intersection of Graham Avenue and Metropolitan Avenue at about 7:35 p.m., cops said.

The victim and the driver of the bus were both heading northbound on Graham Avenue at the time of the collision, authorities said.

The cyclist was taken to Bellevue Hospital, where he was pronounced dead, according to police.

The bus driver remained on scene, and no other injuries were reported.