If the Russians are on the way my guess is the Pirates are dead. The Russians care little about human life and do not play well with those who try to take their things.
There will be no negotiations. The Russians will ask the Pirates to surrender the ship or have it and them destroyed. If the Pirates refuse the Russians will do exactly what they promised. The ship goes down with all aboard.
Scratch 1 band of Pirates.
In so doing, the Russians become pirates. The ship is Ukrainian, not Russian.