At 21:15 a bomb from a lone enemy aircraft demolished two houses directly above the east end of the westbound platform tunnel of Bounds Green Piccadilly Line Station - the image above shows the remains of the houses, with the wartime shielding to the station's ventilation tower being just visible top-right. Approximately 6-to-8 segments of tunnel collapsed on the scores of people on the platform sheltering from the air raid. The houses were completely demolished, killing 4 people, and a huge crater was formed, 60 to 70 ft. in diameter, and depth being about 20 ft. Some 200 tons of debris filled the tunnel, enveloping refugees on the platform, 17 of whom were killed and 59 injured.
