Security footage could be key to finding alleged Whanganui hit-and-run driver

Police say security camera footage could be key to finding the driver believed to have hit and killed an elderly woman in Whanganui.

Police attended the scene on Anzac Parade just before 2am Wednesday morning, where they found the woman's body.

The detective leading the investigation says her family are heartbroken. 

Flowers were being left at the scene on Wednesday.

"They're obviously upset and shocked by the whole incident really," says Detective Senior Sergeant Andrew McDonald.

Police are appealing for any information that could help find the driver of the vehicle that struck the woman.

"The driver is likely to have returned home in the early hours of this morning a little dishevelled and out of sorts."

Despite extensive area searches, there's been no sign of the vehicle involved.

"Their car or vehicle is likely to have sustained some damage, either to the front, or the front area of the car," says McDonald.

There is a rest home nearby but a manager there told Newshub all its residents were accounted for.

At midday, police lifted the cordon from around the crash scene.  

Businesses and local residents who might have seen, heard or filmed anything on security cameras are being urged to come forward.