PARIS — Some travellers trying to cross the English Channel are stranded because French workers are blockading the port of Calais.

British ferry operator P&O Ferries warned passengers that the blockade began Sunday evening as a result of actions by workers at MyFerryLink, a ferry operator facing job cuts.

It’s the latest disruption to cross-Channel traffic this summer, which has seen repeated problems with worker protests and tensions over migrants trying to sneak across to Britain.

The protest is preventing people from boarding ferries on both sides of the Channel. It comes as many British travellers are heading home after summer holidays, including families with school children.

Calais Mayor Natacha Bouchart tweeted that the port was being taken “hostage” and that an accord was expected Monday to end the labour dispute.