Train services have resumed through the Channel Tunnel, after a smoky truck fire forced its closure.
Services resumed early Sunday but tunnel operator Eurotunnel has warned of delays of between 30 and 60 minutes because only one tunnel will be open.
Police say a truck fire at the French end of the tunnel was the source of the smoke Saturday. No injuries were reported.
Eurostar, which runs the trains that go through the passage under the English Channel, said the smoke was detected in the north tunnel.
European nations have been on high alert since last week's terrorist attacks in Paris.
Some information for this report came from AFP.