The Sea Baby, an invention of Ukraine's intelligence agency, has carried almost 1,900 pounds of explosives and operate in stormy conditions, according to reports.
Balloon Juice - War for Ukraine Day 577: The Ukrainians Commissed Another Russian Submarine Today balloon-juice.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from balloon-juice.com Daily Mail and Mail on Sunday newspapers.
The general leading Ukraine’s counteroffensive along the southern front line says his forces have broken through in Verbove – and predicts an even bigger breakthrough to come.