 At around the same time the Canadian gunners bombarded buildings in Lower Tulgas where Bolsheviks had taken refuge (except for the hospital), and then swung the guns around to fire two salvos into the woods to the south.As night fell the Allied forces were surrounded, with the telegraph line to Archangel cut by the Bolsheviks, and the prospect of reinforcement slim.On the morning of November 12, Bolshevik gunboats appeared on the Dvina, and began lobbing six-inch shells at the Allied positions.