Edited sentence: According to initial reports, the pilots were not fully aware of each other.On 11 May 2009, two Gripen aircraft, one from F 17 Kallinge and one from F 21 Luleå, participating in different exercises came within 50 meters of each other in the airspace southwest of Luleå.One aircraft was flying on a straight course, and the other was making a turn.The incident will be investigated by SHK