Thousands of London Underground workers are to start voting on whether to strike in a dispute over jobs.

Members of the RMT union are being balloted from Wednesday over claims that cuts are being "smuggled in" under a so-called transformation programme.

Around 2,000 staff will be balloted, including those working in engineering, signals, electrical, track and control centres. The result will be known in mid-July.

Staff across London Underground are furious at the attempts to smuggle in a creeping programme of cuts and privatisation under the cloak of the transformation programme. Mick Cash, RMT

The union has also warned of industrial action against train operators in a dispute over pensions.