A 14-year-old girl from a Muslim family became pregnant after being taken to Pakistan by her father and forced to marry a man of about 24 in "harrowing" circumstances, a High Court judge has said.

The girl said a gun was produced and she had been subjected to violence, said Mr Justice Holman.

Two weeks after the ceremony, the marriage was consummated - following further "threats" - and the girl became pregnant, he added.

The teenager returned to England and her baby was born.

Detail has emerged in a written ruling following a hearing in the Family Division of the High Court in Birmingham.

Mr Justice Holman said a local authority began care proceedings in relation to the girl and her baby.

Local authority officials wanted a "declaration of non-recognition" of the marriage, but Mr Justice Holman decided the girl would have to initiate proceedings to have the marriage nullified.

"The girl has given an account of the circumstances surrounding that marriage which are, frankly, harrowing," said the judge.

"On her account ... this was a grave example of a marriage which was forced under considerable duress, involving at one stage the production of a gun and physical violence upon her."

He added: "The marriage was consummated about two weeks later after further threats to her if she did not permit her husband, who was then aged about 24, to have sexual intercourse with her. As a result, while still aged 14, she became pregnant."

Mr Justice Holman said the girl's parents were Muslim and had emigrated from Pakistan to England. He said the girl's father became a UK citizen more than 30 years ago.

The girl was not identified.

Barrister Clare Renton, who specialises in family law and is a commissioner with the National Commission on Forced Marriages, said later: "Not only is a 14-year-old incapable of giving consent to marriage, the girl in this case was also subjected to violence.

"Fear of exclusion from the family and community is so great for many that refusal of an arranged marriage is not an option. The current proposal to criminalise forced marriage is welcomed by most of the non-government organisations and charities in the field."