A man has come forward in the Invercargill hit-and-run case, which left a teenager fighting for his life.
In a statement, Detective Sergeant Scott MacKenzie said Invercargill bricklayer Ryan Phillips was struck by a vehicle at about 6:15am on Marama Avenue South, in Otatara.
"A man has presented himself to police and is helping us with our enquiries," Det Insp MacKenzie said.
He said no charges have been laid, but their investigation is ongoing.
"We would like to thank the members of the public who have come forward and the media who assisted in the appeal for information," Det Insp MacKenzie said.
Police said they're not seeking anybody else.
It comes a day after Phillips' father Nathan Phillips urged the driver to come forward to him or the police.
"I have feelings and sympathy for them. What they've been through and are going through is pretty horrific in their own minds," Nathan told AM co-host Ryan Bridge on Wednesday.
"What I would say to them is, 'Please come forward to the police or if you're not confident going to the police, feel free to message me. We're on Facebook, I'm on Messenger. Get in touch with me and just talk to us.'
"We're hurting, they've got to be hurting as well, surely."
Nathan said the injuries caused by the hit-and-run are extensive.
"He's got more broken bones than he has whole bones. It starts at his skull and stops at his pelvis," he explained.
"His organs are a wee bit bruised, damaged and beaten.
"The list keeps growing, every time they scan them, they find more broken bones. It's hard to keep track of the list, to be honest."
But, he added his son is making progress "slowly but surely".
"We had a good day yesterday. They brought him out of the coma slightly and he gave us a nice, big thumbs up, which is quite amazing, to be honest," Nathan said.
"It does [mean a lot] and I'm very emotional, I still am currently as well. The thought of having to perhaps potentially bury your son and then a few days later, he's giving you a thumbs up, it's brilliant.
"[It's] hard to explain it, to be honest."