LONDON: Workers at the UK's biggest postal delivery service, Royal Mail, have voted for a 24-hour strike next Friday (June 29) in a dispute over pay and fears over potential job losses.

Talks between the Communications Workers Union and the organisation's bosses broke down earlier this week, when the union claimed the management was not taking negotiations seriously.

Royal Mail is currently undergoing a restructure, which says the union, could endanger up to 40,000 jobs. The organisation says it cannot afford to pay more than the 2.5% it has offered workers.

It also announced this week that it had lost part of its contract to deliver online retailer Amazon's goods.

Says ceo Adam Crozier: "We are losing business because we have failed to change and modernise - and as a result, our costs and therefore our prices are higher than those that rivals are charging in the intensely competitive business mail market, which makes up 90% of all postings."

If the two sides cannot reach agreement, further 24-hour strikes are planned.

Data sourced from BBC Online; additional content by WARC staff