Two secret government documents about al-Qaida and Iraq were left on a train, British officials said Wednesday. A police investigation was under way. The British Broadcasting Corp. said the documents had been found on a London commuter train by a member of the public, who handed them to the broadcaster. In a statement, the government's Cabinet Office said that "two documents which are marked as secret were left on a train and have subsequently been handed to the BBC." The documents were in the possession of a senior intelligence official, the statement said. He said London's Metropolitan Police was investigating the security breach. The police force confirmed it was making inquiries about the loss of documents on Tuesday.