A commuter train collided with a crane arm that swung into its path in southeastern Spain on Thursday, the transport minister said, in the country’s fourth rail accident in less than a week. Six people suffered minor injuries after the arm hit the passing train’s windows, close to the port city of Cartagena in Murcia region, authorities added. The incident - which did not derail the train but briefly disrupted traffic on the line - came four days after a high-speed train collision in the...