A union representing South West Trains' (SWT) drivers has threatened strike action in a dispute over pay.
The rail operator, one of the country's biggest, runs services through much of south-west London including London Waterloo and Clapham Junction.
Train drivers' union Aslef has threatened to stage a four-day strike from March 31 to April 3 if pay talks fail.
11:01, 20 Mar 2008
by Matthew Rees