ALLEN PARK, Mich. – City officials said gasoline has been detected in the sanitary sewer system in Allen Park.

The gasoline affects residents in the area bordered by Southfield Road, Pinecrest Drive, Pelham Road, Ecorse Road and Roosevelt Avenue, officials said.

Residents in the area are being asked to pour at least a half-gallon of water into each floor drain in their basements.

Officials said the water will fill the trap in the floor drain and prevent vapors from entering homes.

Allen Park officials released the following update around 3 p.m. Friday:

"The immediate Hazard has been mitigated and fire Crews have cleared. We will continue to monitor the situation and recommend that residents continue to ensure that the floor drains have water in them which is a good practice at all times anyway ."