Coastguards and an RAF helicopter have been involved in an unsuccessful search for a missing sailor in weather conditions described as "very poor".
The Maritime and Coastguard Agency said a 45-year-old man, believed to be a foreign national, fell overboard from a small cargo ship moored on the River Trent in the North Lincolnshire area.
A spokeswoman said the man was working with ropes on the MV Sea Melody when he appeared to become entangled and was pulled over the side where he disappeared.
A helicopter from RAF Leconfield in East Yorkshire began a search with an infra-red camera and a coastguard team from Hull was also mobilised.
More top news
Walmley in the West Midlands would become the new centre of Great Britain if Scotland vote to go independent, Ordinance Survey has said.
The man is thought to have tied himself to the bottom of the vehicle as it travelled from Calais to Kent.
A woman in Thailand killed herself by jumping into a pond of crocodiles at a popular tourist attraction, Thai police said.