StG 77 began operations against Dunkirk after the fall of Calais. In the Battle of Dunkirk, Ju 87s bombed the port and attacked Allied shipping evacuating the encircled British and French armies. With StG 1 and 2 the Ju 87s inflicted significant losses on the Royal Navy and French Navy. Côte d'Azur, a 3,047-ton cross-channel steamer was sunk on 27 May followed by the paddle steamer "Crested Eagle" on 28 May. On 29 May the Royal Navy destroyer HMS "Grenade" was severely damaged by a Ju 87 attack within Dunkirk's harbour, and subsequently sank. The French destroyer "Mistral" was crippled by bomb damage the same day. "Jaguar" and "Verity" were badly damaged while the trawlers "Calvi" and "Polly Johnson" (363 and 290 tons) disintegrated under bombardment. The merchant ship "Fenella" (2,376 tons) was sunk having taken on 600 soldiers. The attacks brought the evacuation to a halt for a time. The rail ships "Lorina" and "Normannia" (1,564 and 1,567 tons) were sunk also.