On 7 July the Swedish fleet was notified that a state of war with Russia was in effect, and already on 8 July surprised two unprepared Russian frigates – 32 gun "Jaroslavets" ("Jarislawits") and 24 gun "Hektor" ("Gektor") – which were promptly captured together with their crew of 450 men. The Swedish fleet met a Russian fleet sailing under the command of Admiral Samuel Greig and fought an engagement, the Battle of Hogland, in which neither side managed to gain advantage. Upon return to Sveaborg to repair and resupply Duke Charles' fleet, the Swedes found that Sveaborg had been stocked only with coastal fleet in mind, which amongst other things meant that it didn't store ammunition for the heavy cannons of the open sea fleet and lacked suitable stocks of equipment required to repair large sailing ships.