Two men were killed when their light aircraft crashed and caught fire at the Cuatro Vientos (Four Winds) airport near Spanish capital Madrid, the emergency services reported on Wednesday . The accident happened at around 9.30 a.m. local time as the two pilots were practicing take-offs and landings, reported Xinhua news agency.Their aircraft, a modern SR22, crashed into the fire station at the airport. The cause of the accident is still being investigated.