Disruption on South West Trains between Weymouth and Bournemouth due to emergency services dealing with an incident at Upwey.
Delays of up to 60 minutes and cancellations can be expected. There is no current estimate for when a normal service will resume.
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The UK drivers' train union ASLEF has offered to suspend next week's strike action. It comes as fresh talks to end the dispute are agreed.
Tuesday afternoon's weather for the east of the region
Tuesday afternoon's weather for the west of the region