PETERSBURG, Va - Petersburg firefighters are investigating the cause of a vacant house fire Friday morning.
Crews first responded to the home in the 800 block of Harding St around 11:00 p.m. Thursday.
Investigators say the house has been vacant for at least 5 years and the cause is suspicious.
During the fire, there was a partial collapse of the house on the front right side.
This is a developing story.