UPDATE (April 28, 2016  12:50 p.m.):

Baltimore County Police Arson investigators have determined that the explosion was accidental.

The investigation has indicated that the man who was injured was a plumber and used propane for his torch. He left a propane tank in his Ford Taurus and investigators believed that the tank leaked over the weekend and filled the car. When returned to the car and opened the door, he smelled gas so he closed the door. When he closed the door, the car blew up.

The man remains hospitalized. His current condition is unknown.

UPDATE (April 25, 2016  12:28 p.m.):

Baltimore County Police Arson detectives are continuing to investigate this case. At this time, there is nothing that indicates any criminal activity.

Police and Fire personnel responded to the Unit block of Harness Court 21208 just after 8 a.m. this morning after a car exploded and caused two other cars to catch fire. Only the operator of the car that exploded (a Ford Taurus) was injured and he is expected to survive. He was standing outside of the car when the explosion occurred.

Original release (April 25, 2016  9:21 a.m.):

At 8:13 a.m., Baltimore County Police and Fire personnel responded to the Unit block of Harness Court 21208 for a car fire.

The preliminary investigation into the incident has indicated that one vehicle caught fire which in turn, caught two other vehicles on fire.

The driver of the vehicle that initially caught fire was taken to an area hospital for treatment and is expected to survive.

The incident is being investigated by the Baltimore County Police Arson Unit.