TROUTDALE, Ore. -- Crews contained a large fire at Camping World in Wood Village that caused westbound Interstate 84 to be closed near Troutdale Thursday evening.

Gresham fire officials said a propane tank exploded during the fire and engulfed three firefighters in flames. Other firefighters jumped on them to put out the fire and no one was seriously hurt.

The cause of the fire is still under investigation, but the Gresham Fire Department told KGW's Katherine Cook that the fire began outside a camper and the wind spread the flames to 10-15 other trailers. There were no injuries.

"Basically, a fireball engulfed those crews," said Gresham Fire Battalion Chief Jason McGowan. "I don't want to say they were on fire, but the crews around them kinda grabbed them and made sure they were okay."

McGowan said after the men were checked out and said they felt fine, all three went back to work.

There was also a leaking gas line at the location, but Northwest Natural came out and shut it down.

The Oregon Department of Transportation reported that westbound I-84 was shut down for a two-mile stretch near Troutdale. The freeway was reopened after an hour.

Gresham and Portland fire departments responded to the fire.

Watch video of the fire sent to KGW by a viewer