The husband of a Christian woman acquitted in Pakistan eight years after being sentenced to death for blasphemy has appealed to US President Donald Trump and British Prime Minister Theresa May to help the family leave Pakistan.

Asia Bibi's husband Ashiq Masih in a brief video message said they were in danger in Pakistan.

"Please help us, we are in trouble in Pakistan," Masih appealed to Trump and May.

Masih had previously told The Associated Press by phone that he and his wife feared for their lives.

"We are now living under an increased sense of fear," he said.

AAP

Bibi's lawyer Saiful Malook has already fled the country for safety.

Bibi was arrested in 2009 after she was accused of blasphemy following a quarrel with two fellow female farm workers who refused to drink from a water container used by a Christian.

READ MORE Pakistan Islamists call off protests over blasphemy acquittal in deal with government

A few days later, a mob accused her of insulting Islam's prophet, leading to her 2010 conviction.

Bibi's family has always maintained her innocence and says she never insulted the prophet.

Getty

Pakistan's top court acquitted Bibi on Wednesday of the charges carrying the death penalty, infuriating hard-line Islamists who held three days of nationwide protests demanding her execution, preventing Bibi's release.

The enraged protesters have torched scores of vehicles, blocked highways and attacked government and public property; a radical cleric also threatened to kill the three judges who acquitted Bibi.

AP

READ MORE Pakistan woman accused of blasphemy on no-fly list after lawyer flees

The protests ended after the government agreed to impose a travel ban on Bibi and allow her case to be reviewed. A review petition was filed in the Supreme Court.

On Sunday, some 2000 supporters of the Jamaat-e-Islami party held a protest march in Karachi against the acquittal of Bibi but they remained peaceful.