Emergency services from across the region were last night trying to locate a person in waters at Stow Bridge - but their search was called off as nothing was found.
Resources from across East Anglia, including the coastguard, were based along the bridge close to The Heron pub in the village last night throughout the search and rescue operation.
The coastguard helicopter from Humberside was also sent to west Norfolk to support the incident.
Police are yet to decide if the search should continue today.
Neil Richardson, station manager for King's Lynn, said: 'We were called at about 8.30pm to a body seen in the water.
'We mobilised a boat from King's Lynn along with appliances as well and requested additional backup from our colleagues in Norwich.
'The coastguard from Hunstanton and Sutton Bridge as well as the helicopter supporting us.'
The search was called off at around 11.30pm last night.
He added: 'We take these kinds of reports very seriously.'
- Do you have any information? Email louise.hepburn@archant.co.uk
More details later.
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