Sebastien Lecornu will meet representatives from five unions to discuss ways to guarantee the fundamental freedom to demonstrate. (EPA Images pic)PARIS: France's prime minister plans to meet unions on Wednesday to discuss security and has vowed a "massive" police deployment at protests, following riots in the past week that led to curfews and arrests.

The eurozone's second-largest economy was rocked on the weekend by some of its worst rioting in recent years, just six months before voters head to the polls to elect a successor to president Emmanuel Macron.

Sebastien Lecornu will meet with representatives from five unions on Wednesday morning to discuss "ways and means to guarantee the essential freedom to demonstrate" according to a letter sent to the organisations, which noted some were attempting to subvert the protests with "unacceptable acts."