The parents of a teenager killed in a suspected hit and run in Swindon have said the police's progress is "not good enough".

Harry Parker was killed whilst walking to school at Nova Hreod Academy on November 25 last year.

But despite it being nearly ten months since the incident, no further progress on the investigation has been publicly revealed by police.

In an emotional interview with Greatest Hits Radio, Harry’s still-grieving parents have called this ‘disgusting’.

Wiltshire Times: The Parker family at a memorial bench installed at Akers Way in Harry's nameThe Parker family at a memorial bench installed at Akers Way in Harry's name (Image: Newsquest)

Harry’s mother, Kelly, said: “There’s somebody out there that is walking around, spending time with their family, when they have killed my child and driven off. I’m not stopping until justice is served.

“I find it absolutely disgusting that they are allowed to do that while our son is gone.

“I would like things to be moving on more quickly, it’s been nine months. We’re told all the time ‘no updates, no progress’. It’s not good enough,” she said.

Read More: Family 'can't believe' lack of progress in search for son's killer

An investigation was launched and a woman, in her 50s, was arrested on the same day of the incident, but she was bailed the following month.

In a previous interview, Harry’s dad Adam talked about the day he died, recalling an amusing moment in the bathroom.

“I needed some deodorant, so I went into the bathroom, and he was in there and he was like ‘get out Dad’ and we laughed, and I said, ‘see you later mate’."

After that, Harry began his walk to school and both parents went to work when a short time later, they received phone calls to tell them there’d been an incident.

A teacher at the school provided immediate first aid on Harry and he was then taken to Southmead Hospital in Bristol via air ambulance.  

After being taken there via police escort, Adam and Kelly were able to spend some time with Harry before he died from his injuries.

Wiltshire Times: Adam Parker at the crossing where his son Harry was killed next to a public memorial and 'slow down' banner he'd helped to installAdam Parker at the crossing where his son Harry was killed next to a public memorial and 'slow down' banner he'd helped to install (Image: Newsquest)

In a bid to prevent further tragedy, the Parkers have since started a road safety campaign called the Harry’s Get Home Safely campaign.

They have already made significant changes outside Nova Hreod Academy to deter speeding.

In response, a Wiltshire Police spokesperson said: "Our thoughts are with Harry’s family following his tragic death on Akers Way in November.

"This is an ongoing investigation, and our officers are working hard to ensure that any relevant facts and information is correctly presented before the Crown Prosecution Service.

"It would be inappropriate to comment further at this stage."