Southern Rail drivers are striking for the third day this week.
Passengers will again face disruptions to their journeys as members of the Aslef union take action against driver-only trains.
Another three-day walkout is planned for later in the month.
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Organisers of a music festival in Upminster have apologised after a long queue to get in turned into a stampede.
The 17-year-old died after a stabbing in a park on March 1.
The run is the inaugural event for the Ruth Strauss Foundation, founded by Strauss in memory of his wife who died last year.