A mother who faced a death sentence for blasphemy in Pakistan has arrived in Canada and been reunited with her family after finally fleeing the country.

Devout Christian Asia Bibi, had been languishing in Pakistani custody and living in fear of lynch mobs who wanted her dead.

She endured an agonising months-long wait for freedom while her release was blocked by the Pakistan army, reports the Daily Mail.

The mother had been in failing health and was being denied access to medical care. But last night the Daily Mail was told that she had been allowed to leave at last.

Today her lawyer Saif ul Malook said she had arrived in Canada and U.S. Secretary of State Mike Pompeo said she had been 'safely reunited with her family'.

'Asia Bibi is now free, and we wish her and her family all the best following their reunification,' Pompeo said. 

The development means she is finally safe from violent mobs who were demanding her execution. The mother of two endured eight years on death row for allegedly insulting Islam.

'It is a great relief that this shameful ordeal has finally come to an end and Asia Bibi and her family are safe,' said Omar Waraich of Amnesty International.

'She should never have been imprisoned in the first place, let alone faced the death penalty. That she then had to endure the repeated threats to her life, even after being acquitted, only compounds the injustice.'

Bibi was convicted in 2010 of offending the Prophet Mohammed under Pakistan's controversial blasphemy laws.

Last October she was freed on appeal, sparking violent demonstrations stoked up by Taliban supporters.

She was put under armed protection from Islamist death squads as she sought asylum in a Western country.

Britain was urged to offer her sanctuary, but never did – and was accused of 'pulling up the drawbridge'. 

Eventually, Canadian prime minister Justin Trudeau stepped in. Her daughters are already there, awaiting their mother.

Bibi's extraction from Pakistan was repeatedly delayed, to mounting alarm among family and friends.

After she was freed on appeal, Bibi was blocked from leaving the country when Imran Khan, the prime minister and former cricketer and London playboy, promised hardliners she would stay put pending the case being reviewed.

Last month three judges upheld her acquittal, removing the final obstacle to her fleeing the country – a brave decision, given her case has already seen senior officials murdered for supporting her.

Last night a source said: 'After being released from death row, she thought she was finally free. But she found she was being hunted by extremists. For the last few months she has been living in fear for her life.

'Canada's prime minister has been incredibly helpful. Asia's two daughters flew out there to start new lives in safety. But Asia and her husband could not go with them.

'The Pakistan army's objection was that if they let her go, and she went public rubbishing Pakistan, it would be bad for all of them.'

The Mail understands Bibi and her husband Ashiq Masih were spirited out of Pakistan this week.

Last night a source said: 'Asia has been waiting for many months for this moment. At last she is free. She wants nothing more than to be reunited with her daughters.

'This has been an extremely stressful few months. After being released from death row, she thought she was finally free.

'But the row over her release exploded and she found she was literally being hunted by extremists who wanted her dead.

'So despite being acquitted of blasphemy, for the last few months she has been living in fear for her life.

'Canada's Prime Minister has been incredibly helpful. When no other country was coming to her aid, he offered her and her family refuge.

'Asia's two daughters flew out to Canada to start new lives there in safety.

'But Asia and her husband could not go with them, because Pakistan's government promised the Taliban mullahs that she would not leave the country.

'She has been in a terrible limbo ever since, waiting for the government to sort her safe passage but not knowing whether they could achieve it.' 

'The Pakistan army's objection all the way through was that if they let her go, and she went public rubbishing Pakistan, it would be bad for all of them.

'It was all because the army didn't want her to go.' Prime Minister Khan was frequently opposed by his army, which is heavily influenced by Taliban elements.

But the Mail understands Bibi and her husband Ashiq Masih were spirited out of Pakistan this week at the start of the Muslim holy month of Ramadan which started this week.

Ramadan is a time for peace and reconciliation, and it may have been chosen deliberately by Khan.

Khan will be banking on the hope that there may be less of a backlash, during Ramadan, to a decision to allow Bibi to leave the country.

It is understood her extraction was arranged by an international team from the United States and Canada.

They had been in a race against time to flee before hardline clerics succeeded in whipping up fresh violence on the streets. 

The Tehreek-i-Labaik party called for mass protests after Bibi's innocence was finally confirmed by the country's Supreme Court earlier this year.