The explosion appeared to have happened prematurely on a road about five minutes' drive from Bagram Air Field, 50 kilometers north of the capital Kabul, the interior ministry said. "Again the enemies of Afghanistan failed to achieve their goal. A suicide bomber with his bomb-filled car detonated before reaching his target," the statement said. The Taliban claimed credit for the bombing but said it targeted a convoy of "American spies". On Saturday suicide attacks in the southern provinces of Kandahar and Helmand killed six people and injured dozens. On the same day, a suicide bomber was captured in the northern province of Badakhshan before he set off his vest, the interior ministry said. Copyright AFP (Agence France-Presse), 2011