A French bus driver who was declared brain dead after an attack by passengers who allegedly refused to wear face masks has now died.

Philippe Monguillot, 59, passed away in hospital, his daughter Marie said. "We decided to let him go. The doctors were in favour and we were as well," she said.

Mr Monguillot was attacked in the southwestern town of Bayonne on Sunday after he reportedly asked three passengers to wear masks - in line with coronavirus rules across France - and tried to check another man's ticket.

Two men, aged 22 and 23, have been charged with attempted murder, two others with non-assistance to a person in danger and another with attempting to hide a suspect, the local prosecutor's office said.

Bayonne prosecutor Jerome Bourrier, who confirmed the driver had died, told AFP that he would ask for the charges to be changed to take into account his death.

The driver's family had organised a silent march in his honour on Wednesday, departing from the bus stop where the assault took place.

A photo of Philippe Monguillot and his wife Veronique was left at the stop, alongside floral tributes from locals.

His colleagues used their right to refuse to work in the aftermath of the attack, but will resume work on Monday under reinforced security, the local operator said.

This will include a security agent aboard the so-called Trambus, long buses that ply through Bayonne and its surrounding area in the usually peaceful Basque country.