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Explosions, gunfire in suspected extremist attack in Nigerian state's capital

  • A victim of Friday's bomb explosion recuperates at the Murtala Muhammed specialist hospital, in Kano, Nigeria, Sunday Nov. 30, 2014. More than 102 people were killed in the bomb explosions at the central mosque in the city on Friday, said a hospital worker. A mortuary attendant at the Murtala specialist hospital Kano, Malam Isa Labaran, on Saturday told Associated Press that he counted over 102 dead bodies deposited inside the mortuary on Friday after the multiple explosions at the mosque. (AP Photo/Muhammed Giginyu)

    A victim of Friday's bomb explosion recuperates at the Murtala Muhammed specialist hospital, in Kano, Nigeria, Sunday Nov. 30, 2014. More than 102 people were killed in the bomb explosions at the central mosque in the city on Friday, said a hospital worker. A mortuary attendant at the Murtala specialist hospital Kano, Malam Isa Labaran, on Saturday told Associated Press that he counted over 102 dead bodies deposited inside the mortuary on Friday after the multiple explosions at the mosque. (AP Photo/Muhammed Giginyu)  (The Associated Press)

  • Emir of Kano, Lamido Sanusi, left, visits victims of Friday'a bomb explosion at the Murtala Muhammed specialist hospital, in Kano, Nigeria, Sunday Nov. 30, 2014. More than 102 people were killed in the bomb explosions at the central mosque in the city on Friday, said a hospital worker. A mortuary attendant at the Murtala specialist hospital Kano, Malam Isa Labaran, on Saturday told Associated Press that he counted over 102 dead bodies deposited inside the mortuary on Friday after the multiple explosions at the mosque. (AP Photo/Muhammed Giginyu)

    Emir of Kano, Lamido Sanusi, left, visits victims of Friday'a bomb explosion at the Murtala Muhammed specialist hospital, in Kano, Nigeria, Sunday Nov. 30, 2014. More than 102 people were killed in the bomb explosions at the central mosque in the city on Friday, said a hospital worker. A mortuary attendant at the Murtala specialist hospital Kano, Malam Isa Labaran, on Saturday told Associated Press that he counted over 102 dead bodies deposited inside the mortuary on Friday after the multiple explosions at the mosque. (AP Photo/Muhammed Giginyu)  (The Associated Press)

  • Vigilante barricade the road following an explosion at a market in Maiduguri, Nigeria, Monday, Dec. 1, 2014, with twin blasts exploding at a crowded market in Maiduguri city and explosions and gunshots erupting in Damaturu. Trader Bala Dauda said victims were missing limbs and dripping blood at the Maiduguri market, the same one where two female suicide bombers killed scores of people a week ago. (AP Photo/Jossy Ola )

    Vigilante barricade the road following an explosion at a market in Maiduguri, Nigeria, Monday, Dec. 1, 2014, with twin blasts exploding at a crowded market in Maiduguri city and explosions and gunshots erupting in Damaturu. Trader Bala Dauda said victims were missing limbs and dripping blood at the Maiduguri market, the same one where two female suicide bombers killed scores of people a week ago. (AP Photo/Jossy Ola )  (The Associated Press)

Residents the northeast Nigerian town of Damaturu say explosions and gunfire are being heard in the town, in the latest attack by suspected Islamic extremists.

Resident Garba Musa said Boko Haram attackers burned down a mobile police base early Monday in Damaturu, the capital of Yobe state. A helicopter gunship has arrived.

Fearful residents locked themselves into their homes but civil servant Abdullahi Abba said he fled into the bush with his family.

Boko Haram has increased the frequency and deadliness of its attacks and is holding a couple of dozen towns and villages along the border in the northeast where it has declared an Islamic caliphate.

The extremists are blamed for a Friday bomb attack that killed 102 people praying at the main mosque in northern Kano city.