At least 20 people were killed in an explosion as they stole fuel from a damaged pipeline in a fishing community near Nigeria's economic capital Lagos, police said Thursday. Fire broke out on Tuesday night in the Ilado community on a pipeline operated by the state-run Nigerian National Petroleum Corporation (NNPC), Lagos State police spokesman Emmanuel Ighodalo told AFP. "We understand some 20 people were killed. But we are still investigating the incident to get an accurate picture of the situation," he said. A senior officer with the police marine unit said officers had cordoned off the scene of the blast.