The Unite union, which represents many Barclays workers, says the bank's decision to cut up to 1,700 jobs is 'a colossal mistake'.
The union said frontline roles, including cashiers, personal bankers, operational specialists, branch managers and assistant managers will go throughout 2014.
It claimed that customer service would be affected by the changes and said Barclays risked damaging its reputation.
In a statement Barclays said fewer of its customers were using branches.
More top news
Although it may be a dry and bright start for most, thicker cloud and rain will spread in through the day.
US Democrats must heed the warning of the UK's EU referendum vote to avoid a Donald Trump presidency, Kezia Dugdale has said.
Hundreds of people have been evacuated as a fast-moving wildfire has torched its way across 11,000 acres of land near Los Angeles.