North Sea: UC5 (Mohrbutter) captured by destroyer Firedrake while stranded on Shipwash Shoal, towed into Harwich.
Mediterranean: British battleship Russell (124 crew lost) sunk by German new U73 mine off Malta, field of 22 also sinks a sloop, armed yacht (April 28) and a trawler.
Artois: German gas attacks (until April 29) south of Hulluch against British 15th and 16th Divisions of First Army. British trench raid near Double Crassier (Loos) following day.
Mesopotamia, Kut: Townshend – together with Lawrence and Aubrey Herbert – meets Khalil Pasha aboard launch. Former suggests £1 million gold ransom, latter says ‘Your gallant troops will be our most sincere and precious guests’.
Uganda: British frontier and Lake Victoria demonstrations to cover Belgian advance, which starts on April 29.
Turkey: War Minister announces Turkey replaces Italy in Triple Alliance.
France: Allied Paris Commercial conference.