Eight members of the same family were gunned down in an attack on a mosque in eastern Afghanistan, officials said Sunday.

Sixteen people died and two were seriously injured in an attack on a mosque in Burkina Faso's volatile north, security sources said Saturday.

His Highness the Amir Sheikh Tamim bin Hamad al-Thani sent Friday a cable of condolences to New Zealand's Governor-General Patsy Reddy, expressing his strong condemnation and denunciation of the terrorist attack which took place at two mosques in Christchurch, New Zealand.

Leaders around the world expressed disgust and sorrow at the killing of at least 49 people in New Zealand mosques on Friday, and some also expressed anger at what they described as the demonisation that fuelled such attacks.

Mourners held a minute's silence at 9.30am to remember Makram Ali, who died when Darren Osborne ploughed a hire van onto a crowded pavement close to Finsbury Park mosque.

Three female suicide bombers blew up a mosque overnight in Niger's southeastern city of Diffa, killing 10 worshippers who had gathered after the breaking their Ramadan fast, an army spokesman said.

An explosion at a mosque in the eastern Afghan province of Khost on Sunday killed at least 13 people and wounded 31 and the casualty total may rise, a local police official said.

A suicide bomber killed 11 people on Wednesday in an attack on a mosque in northeast Nigeria, the epicentre of the conflict with militant insurgency Boko Haram, military officials and an aid worker said.

Egypt mourned on Saturday as the death toll from a gun and bomb assault at a mosque in the Sinai Peninsula soared above 300, including children, in the deadliest attack the country has witnessed.

Gunmen who attacked a mosque on Friday in Egypt's North Sinai brandished an Islamic State flag as they opened fire through doorways and windows, killing more than 300 worshippers, including two dozen children, officials said on Saturday.

Armed attackers on Friday killed at least 235 worshippers in a bomb and gun assault on a packed mosque in Egypt's restive North Sinai province, state media reported, the country's deadliest attack in recent memory.

The death toll from Friday's mosque attack in Kabul has risen to 28, while more than 50 were injured, including women and children.