ended 13th March, 220 houses were destroyed or damaged beyond repair, and 7,450 houses were damaged but are repairable. No damage during the week was reported in the London Civil Defence Region or in Scotland. 4. FOOD In the raid on Sunderland on 14th/15th March, 10 retail shops and a catering establishment were demolished and a wholesale warehouse and 46 shops were extensively damaged. Retail shops were damaged elsewhere on the South and North-East coasts. 5. RAILWAYS At 1545 hours on 11th March, the up and down lines were blocked at St.