Nigeria's main opposition party on Wednesday accused the country's security services of being politically partisan and of conducting a "witch-hunt" against it before next year's elections.

"We are worried about the way institutions of democracy are being deployed to rubbish or witch-hunt the opposition," All Progressives Congress (APC) spokesman Joe Igbokwe told Agence France-Presse.

More than 150 people, including 38 police, were killed in a dawn raid by Boko Haram on the northeast Nigerian city of Damaturu this week, emergency services said on Wednesday.

The violence on Monday saw intense fighting on the streets of the Yobe state capital and coincided with a double female suicide bombing in the main city of neighboring Borno state, Maiduguri.

Foreign Minister Jebran Bassil said on Wednesday on the last leg of his tour to West Africa that the Lebanese officials should end their disputes and resolve the problems of Lebanese expatriates.

“We should work hand in hand and put our political and sectarian differences aside, in particular when we talk about the issue of Lebanese expats,” said Bassil during a ceremony held in Lagos, Nigeria's commercial hub.

Boko Haram is increasingly a regional threat and the battle against the Nigerian Islamist sect is meant to be a regional campaign -- but that's not the way it feels for Cameroon's soldiers on a desperate frontline.

"We are fed up with fighting this war all alone," a Cameroonian officer said as he described his army's resistance against Boko Haram and the lack of military support from neighbouring governments.

At least five people were killed Monday when two female suicide bombers blew themselves up at a market in northeast Nigeria and Boko Haram launched a major assault on police in two state capitals.

The blasts in Maiduguri and dawn raid in Damaturu came just days after a deadly mosque attack in the northern city of Kano left at least 120 people dead and hundreds more injured.

Explosions and gunfire rocked the north Nigerian city of Damaturu on Monday, in a suspected Boko Haram attack that targeted police, residents told Agence France Presse.

The sound of blasts and heavy weapons being fired woke locals in the Gujba Road area of the Yobe state capital at about 4:45 am (0345 GMT), said Umar Sada, who lives in the area.

The Emir of Kano, Muhammed Sanusi II, on Saturday said Nigeria's Muslims will not be intimidated into abandoning Islam following coordinated bomb and gun attacks on the city's central mosque that left at least 120 people dead.

Nigerian President Goodluck Jonathan vowed Saturday to hunt down those behind "heinous" attacks which left at least 120 dead at the mosque of an Islamic leader who had issued a call to arms against Boko Haram.

At least 270 others were also wounded when two suicide bombers blew themselves up and gunmen opened fire during weekly prayers on Friday at the Grand Mosque in Kano, the biggest city in the mainly Muslim north of the country.

A suicide and gun attack that killed at least 120 at one of Nigeria's most well-known mosques was extreme in its brutality but part of an increasingly familiar pattern that has spread fear even beyond Nigeria's borders.

Unsuspecting worshipers were blown up as they gathered for Friday prayers at the Grand Mosque in the northern city of Kano; those who survived were cut down by gunfire as they fled.

At least 120 people were killed and 270 others wounded on Friday when two suicide bombers blew themselves up and gunmen opened fire during weekly prayers at the mosque of one of Nigeria's top Islamic leaders.

The attack at the Grand Mosque in Kano, the biggest city in the mainly Muslim north of the country, came just as Friday prayers had started.