One pilot was killed and another injured after two small planes collided midair during an air show performance in southern Portugal today. The accident occurred above an air base in Beja, located about 180 km south of Lisbon, on Sunday as six aircraft belonging to an aerobatic group called the 'Yak Stars' were performing. One plane collided into another and then exploded into flames, killing its Spanish pilot, the Portuguese Air Force (PAF) said. The second involved in the accident managed to land on the airport tarmac, with no victims among the spectators, the air force said. After the accident,...