Two FDNY fire trucks crashed as they responded to a call in Brooklyn, seriously injuring a pedestrian — and also injuring 11 smoke eaters, authorities said.

The trucks were en route to a report of smoke in a Crown Heights building when they slammed into one another at the intersection of Rogers Avenue and Crown Street about 10 p.m., hitting several parked cars, police said.

One of the trucks ended up wedged on the sidewalk between a building a row of cars, photos from the scene show.

Two utility poles were also downed in the wreck.

Eleven firefighters suffered minor injuries in the crash, while one civilian was seriously injured and treated at a local hospital, the FDNY said.

The cause of the crash is being investigated, authorities said.