The Royal Mail is experiencing a "severe service disruption" for its international export services.
The disruption comes amid a cyber incident, following a statement from the postal service which also shared that they were unable to despatch export items including letters and parcels to overseas destinations.
In a statement, Royal Mail said: "We have asked customers temporarily to stop submitting any export items into the network while we work hard to resolve the issue.
“Some customers may experience delay or disruption to items already shipped for export.
“Our import operations continue to perform a full service with some minor delays.
“Our teams are working around the clock to resolve this disruption and we will update customers as soon as we have more information.
“We immediately launched an investigation into the incident and we are working with external experts.
“We have reported the incident to our regulators and the relevant security authorities.
“We would like to sincerely apologise to impacted customers for any disruption this incident may be causing.”
Royal Mail said the service will hopefully be back up and running to its usual rate soon.
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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