GETTY Police have warned women against walking alone at night

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Officials issued the stark warning after 10 separate complaints revealed that asylum-seekers are approaching women in gangs of two or more. Bjørn Slåtsveen, forensics section leader of Vestoppland police, said: "Each time two or more boys have been involved in the incidents. All of them are young and of foreign origin. "They are crossing the line and what they are doing is punishable."

Mr Slåtsveen said police in Oppland are taking the situation seriously but urged women to not walk alone. He said: "It would be good to walk with someone when you can, at least for girls in the evening."

GOOGLE MAPS Oppland officials issued the stark warning after 10 separate complaints of sexual harassment

They are crossing the line and what they are doing is punishable Bjørn Slåtsveen

The officer revealed that one asylum-seeker in his 20s was a suspect in three of the reported cases and that police hope to bring a charge against the migrant shortly. Mr Slåtsveen added: "This is starting to become a tendency and a problem, and it is a big problem for the girls who are exposed to it. "We suspect this [sexual harassment] is occurring without it [being reported]."

GETTY Asylum-seekers are approaching women in gangs of two or more according to police

GETTY Several politicians have said police need to increase the use of force to stop the sexual harassment

He is also concerned about the consequences this behaviour will have for Norway in the future as there is a cultural difference between locals and asylum-seekers entering the country. Several politicians have blasted the attackers for a lack of "common decency" but said police need to increase the use of force to stop the sexual harassment. Conservative MP Mudassar Kapur said the migrants behaviour was completely unacceptable.

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