Air War
Germany: RAF bombs Friedrichshafen.
Northern Europe: Avro Lancaster bombers raid Kjeller aircraft factory, Oslo (night April 28-29).
Occupied Territories
France: Resistance damages 8 tanks and steals an armoured car from Renault works, near Paris.
Home Fronts
USA: Death of Colonel Knox, Secretary of Navy; aged 70. James V Forrestal appointed, May 10.