Post deliveries in Portsmouth have been disrupted by a wildcat strike by staff.
Workers taking part in the unofficial action said about 120 had walked out at 07:00 BST over the dismissal of an employee, before returning to work at 12:30.
The Slindon Street delivery office in the city centre deals with deliveries for the PO1 to PO5 postcodes.
The Royal Mail said it was "disappointed" by the action.
Following the walk out, Ruth Harrison, of the Communication Workers’ Union, said employees were "charged with emotion" over the issue.
She added: "We want minimum disruption to our customers – it’s really unfortunate they feel they’ve been put in a position to do this today."