A woman saw an elderly couple fly over her fence after they were hit by an out-of-control car in the Auckland suburb of Mt Eden this evening.
The young male driver of the silver Suzuki Swift then fled the scene on foot.
The woman, who asked not to be named, was at her Oaklands Rd home when she saw the incident unfold just before 5pm.
"The car was driving at a high speed. I don't know how it lost control but it knocked them right over the fence into our garden."
The couple, in their 70s, were Oaklands Rd residents walking to their home further down the quiet, suburban street, the woman told the Herald.
"The driver took off," she said. "I knew I couldn't go after him and help the couple [as well] so I yelled out to him, 'Stop! Come back here!'"
The man was badly hurt. He had broken bones and appeared to have a head injury. He was taken to Auckland City Hospital in serious condition by St John Ambulance.
He was in a stable condition, but still in the emergency department as of 9pm.
The woman was assessed by ambulance staff but was not transported to hospital.
"A couple of others came out on the street when it happened so I yelled to them to call 111. The ambulance got here really quickly then two police cars with four officers came."
A Police spokeswoman said police located the car when they arrived but the driver had fled.
She said police had an idea of who the driver was and were currently locating him. She confirmed the driver was a young man.
The police's Eagle helicopter was seen in the air in the Mt Eden, Morningside and Western Springs about 9pm.
The Police spokeswoman was unsure if the helicopter was being used to search for the alleged hit-and-run driver.
The hit-and-run car has been impounded.