According to Showbizz.net, the German police confirmed that the people were injured on the set of the movie Valkyrie.
The Associated Press explained that the accident happened Sunday evening. The eleven extras fell off a truck when it went around a curb. The extras were taken to the hospital, and given the necessary care. Most of them had minor injuries.
Shooting of the movie was suspended until after the accident. Cruise was not on the set when the accident took place.