GWR has issued a warning to passengers travelling on its trains today that services may be hit by Covid-related staff shortages.
People are being urged to check for the latest information before they travel, with Omicron case numbers surging across the UK
In a statement the company said: "With rising numbers of staff being unavailable to work due to self-isolation requirements we've taken steps to maintain service levels across the network.
"Unfortunately this incldues planned cancellations designed to minimise the impact on as many customers as possible. As a result of the cancellations some services may be businer than normal.
"Please check your journey before you leave home at GWR.com."
The services it cancelled this morning were 7.40am Penzance to Cardiff Central, the 9.50am Penzance to Plymouth, the 9.59am Cheltenham Spa to London Paddington, the 11.01am Swindon to Westbury and the 11.10am Newquary to Par.
Sixteen other routes will see disruptions and cancelled stops - you can check the full details on the GWR website here.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here