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12 August 2011, 19:16 | Updated: 12 August 2011, 19:19
A search has been called off for a crew member missing after a tugboat capsized and sank on the River Thames near Greenwich this morning.
The Chieftain, which was towing a barge with a crane on it, went down off Greenwich Pier just before 11am.
Two other crew members were safely rescued.
Marine accident experts are investigating.