from Liverpool and began making it safe. Nobody was killed, but over 200 people were injured, some seriously, mostly by flying glass, though one pregnant shopper was thrown in the air by the blast. In all 1200 properties on 43 streets were affected. Marks and Spencer's and the adjacent Longridge House were condemned as unsafe within days, and were demolished. The Arndale's frontage on Corporation Street and the footbridge were structurally damaged. The reinsurance company Swiss Re estimated that the final insurance payout was over £400 m, making it at the time the most expensive man-made disaster ever. Redevelopment In the immediate aftermath of the bombing, the southern half of the centre was repaired and refurbished. The northern half was patched up, with buses originally stopping on Cannon Street itself before the bus station was eventually replaced by Shudehill Interchange in January 2006. Marks and Spencer, which was particularly badly damaged in the explosion, reopened in a separate building, linked to the main mall on the first floor by a glass footbridge which was designed by Stephen Hodder. Shortly after opening the large branch, the building was split into two independent shops. Half remained a branch of Marks and Spencer while the side facing The Triangle became a branch of Selfridges. In Autumn 2003, as the final stage of rebuilding the city centre after the bombing, the whole of the half of the centre-north of Cannon Street was closed and demolished. Over the next two to three years, the northern half of the centre was completely rebuilt and extended. The first phase of the "northern extension", known as 'Exchange Court', opened on 20 October 2005. Exchange Court features Britain's flagship and the world's largest Next store. This was followed by the second phase, known as 'New Cannon Street', which opened on 6 April 2006. Stores in this phase include a new flagship branch of TopShop and Topman. On 7 September 2006, the third and final phase of the northern extension opened. The new Winter Garden features stores such as a new Superdry (formerly HMV, Zavvi & Virgin Megastores), a Waterstone's bookshop, and a new single-level unit for the Arndale Market. The completed mall provides a link from Exchange Square and The Triangle to the Northern Quarter, and from Market Street to The Printworks. The southern half of the centre was also refurbished. Halle Square was modernised, including new skylights, but