Six people have been killed after a gunman opened fire at a university in Oxford's twin city of Perm in Russia.

The assailant opened fire after walking onto campus on Monday morning.

Students and teachers barricaded themselves in their buildings, while others were seen to be jumping out of windows.

Russian police say they have wounded and detained the attacker.

It is reported by the BBC that more than 20 people were injured in the shooting.

The location of the incident was Perm State University in the city of Perm.

It is a city that is twinned with Oxford.

The two cities have been linked since 1990, but didn't become officialiy twinned until 1995.

Last year plans to celebrate that 25th anniversary had to be moved online due to the coronavirus pandemic.

These activities included Oxford residents teaching Perm residents Morris dancing, and Perm residents sharing tips on how to cook traditional Russian food.

Oxford is twinned with eight cities, with Perm holding status as the the most easterly city in Europe.

Perm will celebrate its 300th anniversary in 2023, and invited officials from Oxford in advance to join in the celebrations.