Eurotunnel detected a safety problem on a freight-only train heading to Calais, which had to be repaired in the tunnel before being taken back to Folkestone, blocking one of the two tunnels.
One of its ships on the Dover-Calais route, the Pride of Kent, failed a subsequent safety inspection, and services on the short crossing are not expected to restart for several days, at the earliest. With traffic increased by leisure passengers at the start of the Easter holidays, roads into Dover were gridlocked on Friday. Operation Brock, the emergency contraflow system introduced for Brexit to deal with queueing lorries slowed by red tape at the border, wasSign up to the daily Business Today email or follow Guardian Business on Twitter at @BusinessDesk