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.
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A derailed train at London Paddington means that trains running to and from this station are disrupted.
It will be a cloudy and in places damp start with some coastal and hill fog.
Any early rain or drizzle will soon clear and the rest of the day looks set to be dry.