An unmanned American aircraft fired missiles at a vehicle in a Pakistani tribal area bordering Afghanistan Tuesday, killing five suspected militants and injuring two, Pakistani intelligence officials said. According to AP, the strike was part of a spike in American drone attacks. The latest drone strike came near Shana Khora village in North Waziristan, two officials said. They said the area of the drone attacks is dominated by anti-U.S. militant commander Hafiz Gul Bahadur. The officials spoke on condition of anonymity because they were not authorized to brief reporters.