Five people died Sunday after a fire broke out at a senior-living apartment building in the San Antonio suburb of Castle Hills, authorities said.

Eleven other residents of the Wedgwood Apartments were hospitalized, and at least one is in critical condition, according to Bexar County Fire Marshal spokeswoman Laura Jesse.

About 150 additional residents of the 11-story high-rise were taken by city buses to a high school, and about 100 people remained there Sunday afternoon. A total of 150 firefighters from San Antonio and six other fire departments responded to the blaze, which was reported shortly after 6 a.m., San Antonio Fire Department spokesman Christian Bove said.

The cause of the three-alarm fire is under investigation but appears to have originated on the third floor, Jesse said. The fire left "significant damage," she said. - AP