KHARTOUM (AFP) - Gunmen have attacked police from the African Union and UN peacekeeping force in Darfur for the first time, injuring one officer by beating him with a rifle butt, a UN spokesman said Thursday. "Four gunmen attacked, yesterday afternoon, a UNAMID police patrol, two kilometres (one mile) from the Zam Zam camp for internally displaced persons, injuring one officer," said spokesman Noureddine Mezni from the UN African Mission in Darfur. The unarmed police were stopped at gunpoint as they returned from a routine patrol at the camp, which is near Darfur's political capital of Al-Fasher. The officers were...