Around 100 far-right nationalists marched in the western German city of Cologne on Saturday, with protesters outnumbered tenfold by police, according to authorities.

Supporters of the right-wing extremist party Pro NRW marched accompanied by around 1,000 police, as well as several hundred people who joined a counter-demonstration, prompting police to intervene to separate the two groups.

The protests come as police in Cologne face renewed criticisms over their handling of New Year's Eve celebrations.

Last year hundreds of women celebrating the start of 2016 filed complaints that they had been sexually assaulted and robbed in the city centre, allegedly by large groups of foreigners.

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