The police dive team was back on the River Trent – a week after it was reported a vehicle with two people inside had gone into the water.
Police said that divers’ efforts “continue to be hampered” by the weather conditions and the fast flow of the river.
On Monday, February 8, the diving team has brought in underwater scanning equipment to help them with their investigation.
Officers will use the technology to ensure that the object found in the water is monitored regularly.
This will allow divers to locate the vehicle quickly when conditions are deemed safe to go back into the water.
At this time police are unable to confirm if the object located is the vehicle involved in the incident.
The sonar technology uses sound waves to generate a detailed underwater image.
It can provide visual data 25m down from the surface as well as 25m each way in a horizontal direction.
It comes after a large rescue operation was launched following reports at 4.13pm on Monday, February 1, that a car had left Hoveringham Road and gone into the river.
Witnesses reported seeing two occupants inside.
While no formal identification has taken place, police believe they know who they are and their relatives are being supported by trained officers while enquiries continue to understand the full circumstances of the incident.
Inspector Heather Sutton, of Nottinghamshire Police, said: “Sadly there isn’t much change since last week, with heavy rainfall and now snow not helping our search operation.
“The river is continuing to run very high and fast and visibility is low, but we are continuing our efforts to recover the object from the river despite the challenging conditions.
“I’d like to thank the Environment Agency who are supporting our search with a specialist underwater camera and sonar equipment.
“We are keeping an open mind at this stage as we continue to work hard to establish the facts of how this incident happened.
“Our thoughts remain with the relatives who are being supported and have asked for privacy at this difficult time.
“There are not expected to be any further developments over the coming days due to the adverse weather conditions.
“Once there is an update, we will provide one but until then, I would ask that people do not speculate on what has happened.
“If you have any information that could help us understand what has happened, please do not hesitate to contact Nottinghamshire Police on 101, quoting incident number 500 of 1 February 2021.”