By Wisdom Patrick, Lagos

The Abubakar Shekau-led gang of the dreaded Islamic sect, Boko Haram, in the early hours of Tuesday killed over 40 students of a Federal Government College, located in the remote town of Buni Yadi, Yobe State, North-East Nigeria.

Residents of the town of Buni Yadi said the attackers struck at night, slitting the throats of some students.

This is the second in the series of attacks of this kind. The first one was in Taraba State in which some 59 students and their teachers were killed in their sleep by the same group.

Resident of the town said some of the students had their throats slit, while others were shot death.

Teachers at the remote Federal Government College boarding school in Buni Yadi told the AP news agency that as many as 40 students had been killed in the assault which began early on Tuesday morning. Hospital sources in Yobe told the BBC 29 corpses had been brought in following the attack.

The BBC’s Isa Sanusi, from the Hausa service, says Boko Haram tends to attack schools that teach Nigeria’s national curriculum which the militants consider to be Western.

The group follows an extremely strict version of Islam and its name means “Western education is sinful” in the northern Hausa language, he says.

Earlier this month the militants claimed responsibility for killing a prominent northern Nigerian Islamic scholar, Sheikh Mohammed Awwal Albani, because he said the group’s actions were un-Islamic.

The military has confirmed that an attack took place on “student hostels” but says it cannot yet give further details.

“Details are still sketchy due to lack of telephone access, and it is still not clear how many students were affected in the attack,” Yobe military spokesman Lazarus Eli told the AFP news agency.

It would be recalled that scores of people were killed in two attacks last week. In one incident, militants destroyed a whole village and shot terrified residents as they tried to escape.

The failure of the army to destroy the militants has fuelled anger in the north-east, BBC correspondent.

Thousands of people have been killed since 2009, when Boko Haram launched its campaign to install Islamic law.

Tuesday’s attack in Yobe is close to where suspected Boko Haram fighters killed more than 40 students last September.

The latest offensive ordered by President Goodluck Jonathan in May has been blamed for triggering reprisals by militants against civilians.

Addressing a news conference on Monday, the president defended the army’s record, saying it had achieved some successes against Boko Haram and that the militants had been contained to a small area of north-east Nigeria close to the border with Cameroon.

He said that Nigeria was working with Cameroon to stop the militants from staging attacks in Nigeria and then escaping over the border.

The BBC’s Will Ross in Nigeria says that Yobe has been relatively peaceful this year, unlike neighbouring Borno state where at least 250 people have been killed in a series of large scale attacks by the sect.