Anywhere from 25,000 to 40,000 Soviet civilians died in Stalingrad and its suburbs during a single week of aerial bombing by Luftflotte 4 as the German 4th Panzer and 6th Armies approached the city ; the total number of civilians killed in the regions outside the city is unknown .
Anywhere from 25,000 to 40,000 Soviet civilians died in Stalingrad and its suburbs during a single week of aerial bombing by Luftflotte 4 as the German 4th Panzer and 6th Armies got close to the city ; the total number of civilians killed in the regions outside the city is unknown .