Planes from the Zelazny aerobatics team perform at the Radom Air Show at an airport in Radom, about 100 km (62 miles) from Warsaw, September 1, 2007. Two planes from the team (not in picture) later crashed during the show, killing both pilots. A Reuters photographer at the scene said the collision occurred after a three-plane formation fanned out and two of the aircraft slammed into each other as they attempted to re-converge. [Reuters]