An Islamist has threatened to kill Asia Bibi, the woman who fled to Canada after being released from death row in Pakistan where she spent years jailed on false blasphemy charges.

In a harrowing video threat posted on Facebook which has since been removed, the unnamed man said he had 'reached' Canada to give her a 'terrible death and send her to hell'.

'I will make sure to bring a terrible end to the blasphemer Asia Bibi,' he said, according to a translation by the the British Pakistani Christian Association.

The man did not show his face in the video but filmed his shirt instead.

He said he had gone to Canada to 'stop' her from saying 'blasphemous' things against Islam again.

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Asia Bibi is shown in this 2010 photograph (right) taken when she was jailed for blasphemy for allegedly offending the Prophet Mohammed during a conversation with Muslim women

The unnamed man filmed a video and uploaded it to Facebook on Tuesday claiming to have arrived in Canada to 'stop' her. It was taken down by Facebook

Bibi, a devout Christian in her early 50s, was jailed in 2010 after being accused of speaking against the Prophet Muhammad during a heated argument with Muslim women.

She denied the claims, insisting she had not, and her conviction was overturned last year, a decision which prompted protests from Taliban supporters.

She was freed in Pakistan and held in a remote location until being offered refuge by Canada earlier this month.

Authorities in Canada have not yet commented on the validity of the video threat or on her safety.

She is living in an undisclosed location with her daughters who arrived in Canada in December.

Upon her arrival in Canada last month, a source close to Bibi told Daily Mail: 'This has been an extremely stressful few months.

After being released from death row, she thought she was finally free.

Bibi was accused of defiling the name of the Prophet Mohammed when she rejected calls from Muslim women to convert to Islam

'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.'

Bibi's husband is also believed to be with her in Canada.

The Royal Canadian Mounted Police declined to comment.

Pakistan was accused of not doing enough to protect Bibi after her release as tensions in the country raged.

The government insisted however that it was 'fully behind' ensuring her safe departure from the country.