All Eurostar and LeShuttle services were suspended on Thursday (21 December) after the industrial action was announced.
Eurostar said: “Due to unexpected strike action by Eurotunnel staff, we’ve had to cancel most services scheduled to run today.
“Your train is currently scheduled to run, but the situation remains uncertain. So, your journey may be subject to delays.
“Therefore, we strongly advise you not to travel and recommend that you postpone or cancel your journey.”
Eurostar added: “If you decide to travel, please come to the station at the recommended time stated on your ticket.”
