Workers at Pirelli Tyres’ sites in Carlise and Burton-on-Trent will hold a one-day strike on August 25 in a dispute over pay.

Members of the Transport and General Workers’ Union are also refusing to work overtime from that date. They are angry about a 2.2% pay rise in what the union calls one of the most profitable parts of the company.

It has warned of further strikes.

Peter Booth, T&G national organiser for manufacturing, said: “Members are determined to see this action through to its logical conclusion, which is an improvement on the current pay offer.”

Around 900 workers are involved in the dispute.