A Christian pastor has been beheaded by Islamists in Nigeria, days after appealing for help in a Boko Haram video.

A human rights activist also said other extremists attacked his hometown on the same day.

Reverend Lawan Andimi was abducted earlier this month when Boko Haram militants attacked the Michika local government area, where he was the chairman of a local chapter of the Christian Association of Nigeria. He was killed on Monday.

Reverend Lawan Andimi, a Christian pastor, pictured in a still from a Boko Haram video released before he was killed. Mr Andimi was abducted by the terror group earlier this month

Nigeria's President Muhammadu Buhari condemned Mr Andimi's death, calling it 'cruel, inhuman and deliberately provocative'.

He tweeted: 'I am greatly saddened by the fact that the terrorists went on to kill him even while giving signals of a willingness to set him free by releasing him to third parties.'

Osai Ojigho, director of Amnesty International in Nigeria, called it 'appalling' that Boko Haram followed up Mr Andimi's killing on Monday with an attack on his hometown in the Chibok local government area of northeastern Borno state.

In the footage, Mr Andimi said 'all conditions that one finds himself is in the hand of God.'

He said: 'By the grace of God, I will be together with my wife and my children and all my colleagues.

'If the opportunity has not been granted, maybe it is the will of God.'

In the video, Mr Andimi said 'all conditions that one finds himself is in the hand of God'. Nigeria's President Muhammadu Buhari condemned the killing as 'inhuman' and 'cruel'

A still from a video clip released by ISIS's Amaq 'news agency', showing a hooded child of around eight years old holding a pistol, carrying out the execution of a Christian man

In April 2014, 276 girls were abducted from the Government Secondary School in Chibok.

More than 100 are still missing nearly six years later.

Mr Andimi is the latest Christian to be killed by Boko Haram or a breakaway faction that has ties to the Islamic State group.

Eleven Christian hostages were killed by Islamic State terrorists in Nigeria on Christmas Day. This still is from a video clip released by Islamic State West African Province on December 25

Last Friday, the Islamic State's West Africa Province, known as ISWAP, released a video which showed a hooded child with a pistol in their hand killing a Christian man.

On Christmas Day, Iswap killed nine Christians along with two other captives.

Boko Haram and Iswap want to enforce strict Islamic law in Nigeria and have reportedly forced some captives to convert to Islam under threat of death.

Nigeria's Christian community is calling on their government to do more to protect them.

In a story January 22, 2020, about a Nigerian pastor who was killed, The Associated Press erroneously reported that on a video he had pleaded for his life. In the video he appealed for help.