Eleven people were injured on a pileup on the Prospect Expressway in Windsor Terrace Friday, officials said.

The multi-car crash happened just before 2 p.m. on the expressway near 8th Avenue, fire officials said.

Five people were rushed to Methodist Hospital, four were taken to Maimonides Hospital and two to Kings County Hospital, according to the FDNY.

The extent of their injuries was not immediately known.

It was also not known what caused the crash.