(KRON) — Fire crews are still on the scene of a two-alarm fire that broke out in a Pentecostal church in Pittsburg early Friday morning. Units from the Contra Costa County Fire Department engaged with the blaze which resulted in a partial building collapse, according to a tweet from ConFire.

Defensive operations are ongoing in an effort to contain the fire, which the department says is burning in a concealed space between floors in the building and has extended on third of the way across the building. A crew rotation is planned for later this morning. Fire officials say the fire at the Pentecostals of the Bay Area at 310 Central Avenue was first reported at 2:45 a.m.

A public information officer for the department is on the scene and people are being advised to avoid the area. Crews will be on the scene for several hours, according to a subsequent tweet from the department.

Cooler temperatures Friday morning helped prevent the fire from spreading to other buildings, according to Contra Costa Fire Protection District Capt. George Laing. No injures were reported in the fire, the cause of which remains under investigation.

Bay City News contributed to this report.