Royal Mail staff at Bridgwater and Weston-super-Mare have been striking this morning over work practices.
They walked out in a dispute over allegations of bullying and overloaded deliveries.
It's expected to affect deliveries in the areas.
Postal workers in parts of Somerset are on strike tomorrow. The action in Bridgwater and Weston-super-Mare isn't linked but, in both cases, staff say they've been set impossible targets by managers and are then unfairly penalised when they fail.
The Communication Workers Union claims managers don't recognise their mistakes. But the Royal Mail says it isn't asking workers in Somerset to do more than staff in other parts of the country. David Woodland reports.
Postman Rob Jennings spoke to ITV News West Country ahead of this weekend's strikes.
David Wilshire speaks for the Communication Workers Union in the West Country:
Royal Mail staff at Bridgwater have attended a meeting ahead of their strike action this weekend over work practices.
They are walking out in a dispute over allegations of bullying and overloaded deliveries.
More than 100 workers at the depot in Friarn Street have already taken five days of strike action over the dispute.
It affected the TA5, 6 and 7 postcodes.
Mail deliveries in Somerset are facing disruption once again tomorrow as workers plan a day of strike action.
Staff in Bridgwater are walking out in a dispute over allegations of bullying and overloaded deliveries. More than a-hundred workers at the depot in Friarn Street have already taken five days of strike action over the dispute. It affected the TA5, 6 and 7 postcodes.
David Wilshire from the Communication Workers Union in the West Country spoke to ITV News West Country:
Postal workers in Weston-super-Mare have agreed to go on strike for the first time in 20 years.
Staff said it was over cuts and being asked to cover sickness and absenteeism.
On Tuesday morning, members of the Communication Workers Union said they would stage a series of one day strikes beginning in August.
A meeting will be held later by postal workers in Weston-super-Mare.
They voted to strike last week and will meet at the town's Royal Mail depot to discuss how long the action might last.
Workers at the Warne Road building are unhappy at changes that have been made to delivery rounds
Despite the postal strikes in Somerset, Royal Mail say that an “overwhelming majority of mail" was still delivered across the three action.