A fire broke out at a fire station in Huntington Park early Wednesday morning. 

Crews responded to a second-alarm structure fire at Fire Station 164, at 6301 Santa Fe Avenue, around 4 a.m., according to Fred Fielding, spokesperson for the Los Angeles Fire Department.

Video captured by KTLA shows firefighters – some in street clothes – mopping up the mess in the aftermath of the fire; additional footage posted to the Citizen App shows crews on the roof of an adjacent building battling the blaze. 

No firefighters were injured, Fielding said, but some fire equipment was heavily damaged.

The flames were extinguished by 5:10 a.m.

An investigation into what caused the fire is ongoing. 

Alexis Lewis and Dan Lunsford contributed to this report.