Strike action has resumed on South Western Railway (SWR) as part of a long-running dispute over train guards.
SWR is cancelling 800 trains a day until the end of Monday - about half its services - following the walkout by National Union of Rail, Maritime and Transport Workers (RMT) members.
The union accused SWR of "rowing back on their public pledges" about the future function of guards.
The operator said it was "committed to finding a solution" to the dispute.
SWR, which runs services in London and Berkshire, Surrey, Hampshire, Dorset, Devon, the Isle of Wight and Somerset, has been in dispute with the RMT since November 2017.