MARION COUNTY, Fla. -

Marion County firefighters said they were called out to four separate mobile home fires early Sunday morning, using about 40 firefighters from 10 different fire stations around the county.

Firefighters said all four fires were vacant mobile homes, and there were no injuries.

Firefighters said at 4:11 a.m. Sunday, dispatchers received one call reporting the first fire at 16920 NE 40th Terrace.

Firefighters got to the home within seven minutes of being dispatched to find a shed engulfed in flames and the adjacent mobile home approximately 40 percent involved, officials said.

Two minutes later, dispatchers received the first of several 911 calls reporting a second fire, located at 4476 NE 167th Place in the same community, officials said.

The single-wide, vacant mobile home was completely engulfed in flames when  firefighters arrived, officials said.

Four Marion County sheriff's deputies were sent to patrol the area at 4:40 a.m., then at 5:14 a.m. dispatchers received the first of several calls reporting the area’s third fire, located at 16676 42nd Avenue.

The home was 100 percent involved when the first of nine crews arrived, firefighters said.

Firefighters said they found the last fire, a double-wide mobile home at 15950 NE 58th Avenue., at 7:08 a.m. When firefighters discovered it, the home was already burned to the ground.

The state Fire Marshal’s Office is investigating all four incidents.