Freiburg was heavily bombed during World War II. In May 1940, aircraft of the Luftwaffe mistakenly dropped approximately 60 bombs on Freiburg near the railway station, killing 57 people. On 27 November 1944, a raid by more than 300 bombers of RAF Bomber Command (Operation Tigerfish) destroyed a large portion of the city centre, with the notable exception of the "Münster", which was only lightly damaged. After the war, the city was rebuilt on its medieval plan.