Underground fuel pipelines of a gas station exploded on Friday damaging at least three houses in Marapalam Village, East Padang Subdistrict, West Sumatra. "The blast caused shattered ceiling and broken walls of the houses," ANTARA quoted Head of Disaster Mitigation of East Padang Fire Department Edi Asri as saying here Friday. The leakage on the fuel pipelines was suspected as the cause of the accident. However, there was no casualty and the blast did not cause fire. The local authority had reported the accident to the police. "Police line was set up around the site for security," Asri said.