A man armed with a grenade demanding protesters be given an audience with French president Emmanuel Macron has been arrested in western France, reports the BBC.
The man, who was wearing a yellow jacket like the hi-visibility jackets worn by protesters, surrendered after several hours' negotiation in Angers.
The incident comes as Paris readies itself for the arrival of tens of thousands of protesters taking part in a second weekend of demonstrations.
They are protesting at fuel prices.
Much of the anger is directed towards President Emmanuel Macron, who is accused of being out of touch.
Police were first alerted to the incident at about 16:45 local time (15:45 GMT) on Friday, with the man finally surrendering just before 22:30.
According to local police, the 45-year-old was holding a grenade in his hands, demanding "the yellow vests be received at the Élysée" Palace, the president's official residence in Paris.