Aerospace firm Rolls-Royce has announced plans to cut up to 2,300 jobs to reduce costs and improve efficiency.

The job losses come as the firm seeks to ward off the impact of high raw material prices and a weak dollar.

Mike Terrett, Rolls-Royce's chief operating officer, says: "These actions will help the group to mitigate external headwinds such as increasing raw material costs and the weak dollar."

The cuts will affect the company's operations in the UK, US, Germany and the Nordic countries, the firm said.

The losses, which represent just under 6% of Rolls-Royce's global workforce, will come among managerial, professional and clerical staff.

The firm employs about 39,500 people in 50 countries, with 23,300 in the UK.

Rolls-Royce declined to say how many jobs would be lost in the UK, but said it would try to make the cuts through voluntary redundancies. Its UK operations include plants in Derby, Bristol and East Kilbride.

The company gave no time frame for the job cuts, saying it was still in talks with staff and unions.