Strikes are likely to affect operations at several French ports in the coming days, according to reports.
At Le Havre, port officers will stage a 24-hour strike from 0600 on February 15.
Notice of a strike from 2000 on February 15 to 2000 on February 16 has also been given at Fos.
There will be a strike at Bordeaux from 0001 to 2400 on February 16, but the petroleum terminals of Ambes and Pauillac will not be impacted.
Dock workers will stage a 24-hour strike from 0600 on February 16 at Saint Nazaire and Montoir, and from 0500 on February 16 at Donges and Nantes. There will also be a strike by port staff who install/remove gangways at Saint Nazaire, Montoir and Donges from 0500 on February 16 to 0500 on February 17, the reports said.