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Authorities are on the scene of a garage explosion Thursday morning in Garden Homes, which is located in unincorporated Alsip.

The Cook County Sheriff’s Office got the first call about a fire at 3739 W. 116th Place at about 4:50 a.m. One person was at home at the time and she got out safely.

The fire gutted the garage, according to the Cook County’s Sheriff’s Office. There was also damage to the siding of the house, and damage to two other garages on each side of the garage that was destroyed.

A retired firefighter on the scene told WGN confirmed the explosion, saying there were propane tanks inside the garage.

The cause of the fire is under investigation.