Air raids began in August 1940, and in September 1940 the Palace Theatre on Oxford Street was bombed. The heaviest raids occurred on the nights of 22/23 and 23/24 December 1940, killing an estimated 684 people and injuring 2,364. Manchester Cathedral, the Royal Exchange and the Free Trade Hall were among the large buildings damaged. On the night of 22/23 December, 270 aircraft dropped 272 tons of high explosive and 1,032 incendiary bombs; on the second night, 171 aircraft dropped another 195 tons of high explosive and 893 incendiaries. Nazi propaganda claimed that the entire city had been burned to the ground.