After storming Bolton, Rupert's army rested at Bury, where it was reinforced. He then advanced on Liverpool and opened a siege and bombardment on 6 June. At midday on 10 June, having made breaches in the earth walls with cannon fire, the Royalists launched an assault which was beaten back. During the following night, the Parliamentarians abandoned the town and left aboard ships in the harbour, leaving their colours on the remains of the walls as a ruse. When Colonel Henry Tillier's regiment (another unit recently returned from Ireland) advanced into the town the next morning, they found 400 remaining defenders "of the meaner sorte", many of whom were killed, only some being given quarter.