A truck caught fire Saturday evening on a Middletown highway — forcing cars to detour in the area, authorities confirmed to NJ Advance Media. So far, no injuries have been reported. The material from the vehicle — which appears to have spilled and ignited during the incident on Route 36 near Henry Place — is believed to be diesel fuel, a police spokesman said. “We are on the scene of a fuel truck that caught fire. As a result, the Middletown Township Fire Department responded. Both lanes of Highway 36 have been shut down,” Middletown Deputy Chief Paul Bailey said on the phone. According to 511…