Series of walkouts will start on Sept 5 and involve signallers, engineers and service control personnel

London Underground workers are to stage a series of strikes next month in a dispute over pay and conditions, the RMT union announced.

Series of walkouts will start on Sept 5 and involve signallers, engineers and service control personnel

London Underground workers will stage a series of strikes next month that could bring travel chaos to the capital. On 5 September some union members at the Ruislip depot in west…