The European Public Prosecutor's Office has opened an investigation into possible fraud in the use of EU funds during modernization and improvement works on the Madrid-Seville high-speed line, El Pais newspaper reported. According to the newspaper, the investigations began following a collision between two trains in the Spanish province of Toledo. In this way, the agents of the Civil Guard approached the headquarters of the train operator Ethor, the State Railway Safety Agency and the Court of Accounts to collect the necessary documentation, he added.