French railway workers are to go on strike as unions continue to protest against planned labour reforms.
This is expected to further disrupt a transport network already suffering from a shortage of fuel.
French President Francois Hollande has insisted he will not back down over the reforms, which aim to make it easier to recruit and dismiss employees.
Public sector workers in neighbouring Belgium are also going on strike on Tuesday over budget cuts.
The national strike there will see police officers, teachers and some civil servants join train drivers and prison guards, who are already on strike.
As well as budget cutbacks, the unions are protesting against changes to working hours and a rise in the retirement age.