The Orange Fire Department responded to a building fire early Friday morning at 12:50 a.m. The first crew to arrive at 5700 16th St. found a small office building with heavy fire showing from two windows.

The fire was quickly extinguished using water carried on the fire engine. 

No one was in the office building at the time of the fire and no injuries were reported according to Jerry Ziller, fire chief for the City of Orange. 

The cause of the fire is under investigation and considered suspicious.