UPDATE: The Teenage Pakistani Girls Murdered In An Honour Killing For Dancing In The Rain (PICTURED)

Two girls and their mother were reportedly murdered in northern Pakistan after a video of the teenagers enjoying a rain shower on the lawn outside their home was circulated among family members.

Police believe the girls’ stepbrother Khutore interpreted the video as “an assault on the honour of his family” and tried to “restore the family’s honour” by killing the girls, Pakistan’s Dawn newspaper reports.

The girls, aged 15 and 16, died when five masked men burst into their home and began firing. Their mother was also killed in the attack.

Khutore’s whereabouts are unknown but four of his friends have confessed to the murders, a senior police source told the newspaper.

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The Human Rights Commission of Pakistan said that in 2011, 943 women were killed for apparently causing shame to their families, the Telegraph reported last year.

The figure is an increase of more than 100 in 2010.

In November a Pakistani couple admitted killing their 15-year-old daughter because she "looked at a boy".

The girl's father told the BBC they flung acid at her because they feared her act would bring dishonour on the family.

He said: "There was a boy who came by on a motorcycle. She (Anusha) turned to look at him twice. I told her not to do that, it's wrong."

Her mother recounted: "She said 'I didn't do it on purpose. I won't look again'. By then I had already thrown the acid. It was her destiny to die this way."