Friendly fire WWII

[Rainer]

Can someone identify the aircraft shot down in the following friendly fire incident?

At 1125 hours on 19 August 1942, the US tanker GULF OF MEXICO was en route in the Bristol Channel when a single low flying twin-engine bomber appeared out of low clouds from ahead about 1 mile west of Scarweather Light. The aircraft looked like a Ju 88 and did not fire recognition signals, so the order was given to open fire at 1000 yards in accordance with CAMSI instructions to fire at any plane approaching within 1500 yards when east of 36°W. Recieving several hits from three Oerlikon guns the aircraft caught fire and crashed into the sea about 1 mile off the starboard quarter. When the tanker arrived at Milford Haven the next day, they were told that they had downed a British aircraft.