One man was sent to Harborview Medical Center with severe burns after a fire in rural Clinton Wednesday night, according to South Whidbey Fire/EMS Deputy Chief Mike Cotton. A firefighter who had been on scene was sent to WhidbeyHealth Medical Center.

Fire personnel responded to a structure fire around 10:40 p.m. on Hilberg Lane. Units arrived to find a large detached garage with an upstairs apartment engulfed in flames, and they saw a propane tank in an RV parked inside the building had exploded. The apartment’s two occupants managed to escape out a second-story window, but one of them was burned, Cotton said.

Cotton didn’t provide details about the firefighter who was transported to the hospital but said he has been treated and released.

The blaze scorched the side of the nearby house and broke a window. Fifteen firefighters responded with four of the district’s five tenders. There were no hydrants nearby, so the crew had to pump water 1,600 feet to the structure from a tank set up on a nearby road.

Personnel cleared the scene at about 4 a.m. The cause is still under investigation, according to the Island County Sheriff’s Office. .