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CHICAGO — Unbelievable video from WGN News’ Skycam 9 captured a firefighter jumping to safety while battling a massive fire in Chicago’s Bridgeport neighborhood.

A mayday call was issued after an extra-alarm fire started around 7 a.m. Friday at a building in the 2700 block of South Lowe. Power lines in the area were catching fire, causing a bigger problem for firefighters to control the flames.

When Skycam 9 arrived to the scene, fire crews were seen sliding down a ladder from the roof as smoke overtook the area. One firefighter, who was stranded on the roof, was captured jumping to the building next door to safety.

According to Chicago fire officials, all crew members are accounted for. Officials said seven firefighters were hospitalized, some with minor burns, one with an orthopedic issue and another with a laceration.

“These firemen all scrambled, they were all able to be rescued,” District Chief Steven Clay said.

Clay added that firefighters were slowed due to needing to shut down nearby power lines and faced water problems as well.

The fire was struck just after 8 a.m. Friday.

The cause of the fire is under investigation.