Seven red heeler puppies have been found after they were allegedly dumped at Port Adelaide, while two cats were allegedly dumped on a highway in South Australia’s Mid North.

A witness alerted police after watching as a blue Great Wall utility pulled up and allegedly dumped the puppies on the banks of the Port River, near Moonta Road, about 3pm on Saturday, March 30.

Police rescued seven red heeler puppies allegedly dumped at Port River on March 30.(Supplied: SA Police)

Police said the puppies were running along the beach and some were pulled from the water.

The puppies were taken to a vet to be checked over and have since been taken to a rescue organisation to be rehomed.

Police are now appealing for information to identify the blue utility which they said had distinctive custom racks installed at the rear.

You can report anonymously to Crime Stoppers on 1800 333 000.

Police are looking for the owner of a blue Great Wall utility allegedly used to dump the puppies.(Supplied: SA Police)

In a separate incident, the RSPCA has released CCTV footage of two cats being dumped on Thiele Highway near the Sutherlands Hotel, about 125km north east of Adelaide, in the state’s Mid North.

The footage, recorded about 7.40am on Wednesday, May 1, shows a light-coloured, four-door hatchback stop on the side of the road and a woman exit the vehicle from the front passenger seat.

The driver remains inside the car as the woman then opens the right rear passenger door and two cats leave the car.

She then returns to the passenger seat and the car drives away.

The RSPCA said one of the cats was caught soon after but the other was still missing.

One of the cats was rescued at Sutherlands last week.(Supplied: RSPCA South Australia)

An RSPCA spokeswoman said the captured cat — a friendly female estimated to be about six-months-old — was in the care of the person whose CCTV captured the incident.

“Abandoning an animal is an offence under South Australia’s Animal Welfare Act, and anyone found guilty can face up to two years imprisonment or a $20,000 fine,” the spokeswoman said.

The RSPCA is appealing for anyone with information, including anyone with potentially relevant dashcam footage, to contact the organisation on 1300 477 722.