December became split up, with one group reaching the Devil's Peak area while the other descended into Kai Tak and marched into Kowloon on the morning of the 12th, where they were engaged by the IJA 3/320th Regiment which had infiltrated into the area. The Punjabis fought their way down to Tsim Sha Tsui and were evacuated by Star Ferry. HMS Tamar was scuttled in the harbor to prevent its use by the Japanese. On the night of the 12th the 5/7th Rajputs withdrew from Ma Yau Tong further down the Devil's Peak peninsula and at 04:00 on the 13th they began boarding boats to take them to Hong Kong island with the evacuation being completed by the morning of 13 December 1941. Hong Kong Island Maltby organised the defence of the island, splitting it between an East Brigade and a West Brigade. The West Brigade commanded by Brigadier John K. Lawson had its headquarters at the top of Wong Nai Chung Gap, a strategic passage between the north and south of the island. The West Brigade comprised the 2/14th Punjab covering the shoreline from Causeway Bay to Belcher's Point; the Winnipeg Grenadiers defended the southwest corner of the island and Lawson's headquarters; the Middlesex Regiment was dispersed across 72 pillboxes along the island shoreline; the 2nd Royal Scots reinforced by the HKVDC were held in reserve at Wanchai Gap; and the HKVDC had companies located at High West, Mt Davis, Pinewood Battery, Magazine Gap, Jardine's Lookout and Aberdeen Naval Base. The East Brigade commanded by Brigadier Cedric Wallis had its headquarters at Tai Tam Gap. The East Brigade comprised the 5/7th Rajputs holding pillboxes along the northeast shoreline with a company and their headquarters in the hills behind Taikoo Dockyard and a reserve company in Tai Hang; the Royal Rifles of Canada defended the island's northeast all the way around to Stanley; and two companies of the HKVDC were located at Tai Tam and Pottinger Gap. On the morning of 13 December a Japanese delegation crossed the harbor to offer terms of surrender, which were rejected. The Japanese then began an artillery bombardment of Hong Kong Island disabling one of the 9.2-inch guns on Mt Davis and hitting Belcher's Fort in Pok Fu Lam. On the 14th Japanese artillery destroyed a 3-inch gun at Mt Davis. On the 15th Japanese artillery moved to targeting pillboxes and other defensive positions