The State Fire Marshal's Office has been called in to investigate a suspicious early morning fire in Seminole County that sent a firefighter to the hospital.

The blaze started around 2 a.m. Wednesday, in the driveway of a home off Northeast Triplet Drive.

When they arrived, fire officials said a 2013 Nissan Murano was fully engulfed and caught a second vehicle on fire.

Officials said the female firefighter was trying to put out the fire when gasoline sprayed her in the face.

"With the plastic fuel tanks, there's obviously the potential for leaking," Casselberry Fire Department Battalion Chief Jim Crabtree said. "We had a small leak here, which we contained. That's always a potential and it could cause the fire to move if the gas is moving downhill."

The firefighter was awake and alert in the ambulance. Our cameras saw her wiping the gas from her face and speaking with fellow firefighters.

Paramedics said she was transported to Florida Hospital with non-life threatening injuries.

Two adults and a teen were inside the home when the fire started but were not injured.

Fire investigators have ruled the fire as an arson, but the State Fire Marshal's Office continues to investigate the incident.

Anyone with information is asked to call CrimeLine at 800-423-TIPS (8477).