on-Don, Ramadan 15, 1432, Aug 15, 2011, SPA -- The Russian Interior Ministry said four servicemen have been killed and seven wounded by rebels in a restive region in Russia's North Caucasus. Madina Khadziyeva, a spokeswoman for the ministry's branch in the province of Ingushetia, said that militants ambushed an Interior Ministry convoy Monday in the region's mountain forests close to the administrative border with Chechnya. She said the attack occurred near the village of Dattykh, but gave no further details, AP reported.