Nine people have been arrested in France following an investigation into the murder of a far-right nationalist student by suspected militants from the far-left.

Those detained include a parliamentary assistant for a deputy from the radical left France Unbowed (LFI) party.

Quentin Deranque, a 23-year-old maths student, died in hospital on Saturday - two days after being beaten and kicked about the head by a gang of masked young men in Lyon.

It happened after a small demonstration by far-right feminists - who Deranque was supposed to be helping protect - at the city's Institute of Political Studies (IEP), commonly known as Sciences-Po.

The arrests confirm what has widely been reported: that those suspected of the murder are far-left militants linked to a banned group called La Jeune Garde (Young Guard).