Brian, any comment on this case ?
"Night 5/6 June During the night a number of aircraft were lost to reasons other than enemy fire. Aboard a 75 Squadron Lancaster, Flight Sergeant W E Barker witnessed a mid-air collision between two Halifaxes. Sadly, there was also a friendly fire incident. Flight Sergeant Douglas in a 15 Squadron Lancaster was fired upon by ships of the US Navy. The fire missed his aircraft by a narrow margin, but hit and destroyed two other Lancasters in the formation."
Source:
http://www.raf.mod.uk/dday/timeline_june5.html
And a post-WWII case, Greek-Cypriot firing on Greek aircraft bringing reinforcements during the Turkish invasion in 1974: 33 dead
Source:
http://www.militaryphotos.net/forums...t=79617&page=5