Rail passengers are being warned about delays between Chester and Wrexham.
Arriva Trains Wales said the problems were being caused by a signalling problem on Friday afternoon (December 16).
Services had also been affected by a similar issue on Friday morning.
Commuters have been warned to expect delays of up to 15 minutes.
The line is expected to be running as normal by 6.15pm.
National Rail tweeted: "Trains between Chester and Wrexham General are being delayed by up to 15 minutes, due to a signalling problem. Expected until 18:15."
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