900 workers at South West Trains walk out in a row over management scabbing.
The workers at South West Trains (SWT) walked out at midnight for a 24 hour strike over management scabbing during previous industrial action, when managers drove trains. The striking workers are mostly members of Aslef, with some RMT drivers also involved.
SWT, which operates across the South from London's Waterloo station, said only 10% of its services would run, a claim ridiculed as "optimistic propaganda" by union bosses. Drivers on the Heathrow Express from Paddington in London to Heathrow Airport are also striking on Tuesday in a separate dispute.
The SWT action will be followed by two further strikes on the 8th and 11th of September unless the deadlock is broken, the ASLEF said.