On 28 March 1933, an Armstrong Whitworth Argosy II passenger aircraft, named City of Liverpool and operated by British airline Imperial Airways, crashed near Diksmuide, Belgium. Captain Leleu was the pilot who with 14 others was killed. He is buried at West Norwood cemetery.
It was the deadliest accident in the history of British civil aviation at that time. It has been suggested that this was the first airliner ever lost to sabotage and in the immediate aftermath, suspicion centred on one passenger, Albert Voss, who seemingly jumped from the aircraft before it crashed.