Fire officials are trying to determine what sparked a 5-alarm fire which burned overnight in Queens.

It broke out in the ceiling of a building on Myrtle Avenue near 72nd Street in Glendale around 9:30 last night.

The two-story, mixed-use building houses a farmer's market.

Hundreds of firefighters were called to the scene.

Flames were brought under control shortly after 1 a.m. Sunday.

11 firefighters suffered minor injuries, while one civilian refused medical attention at the scene.