A dog was thrown into the River Trent with a heavy stone tied to its neck and left to die.
Newark Police condemned the owners of the Belgian Shepherd for trying to kill her in an “evil and nasty” way on the morning of Monday, January 6.
A woman spotted the dog, whose name was registered as Bella in 2010, in Farndon in Newark at 8.45am and managed to drag her to safety.
The animal had a carrier bag tied to her lead with a large rock inside but is now being cared for by a local vet.
Officers investigating the crime have appealed for anyone who recognises the dog or saw anything suspicious in the area to come forward.
PC Pace said: “This was an evil and nasty thing to do to this poor dog and we are making every effort to find out who is responsible.
“If anyone has dash-cam or CCTV footage of vehicles in Long Lane that may show who was in the area at the time that would be really helpful.
“We are working with the RSPCA and are conducting microchip enquiries.
“Her name was recorded as Bella on her microchip but it is possible she may be known by another name if her owner has changed since then.”
Anyone who can help the police with the investigating has been urged to call 101 and quote incident number 103 of January 6.