Douala, January 28 Two suicide bombers died today when they targeted a school in northern Cameroon, local officials said, the latest attack in the central African country which is struggling to contain violence blamed on Boko Haram militants in neighbouring Nigeria. There were no other reported deaths in the double suicide bomb attack, though an unknown number of people were injured, one official said. “The double attack occurred in the public school in the town of Kerawa,” the official said. While there was no immediate claim of responsibility for the attack, northern Cameroon has become the scene of increasingly frequent suicide attacks as Boko Haram Islamist militants step up cross-border violence that has also affected Chad and Niger. An attack targeting a market in north Cameroon three days ago killed 32 people and wounded 66 in one of the deadliest attacks in the country to date. One source said the school in Kerawa targeted today had been housing Nigerian refugees. Boko Haram has killed thousands of people and driven more than two million from their homes during its six-year insurgency in one of the world’s poorest regions.