Investigations into the death of teen Jamie Donnelly are 'still ongoing'. 

The 17-year-old was killed in January this year after a Vauxhall Astra he was in collided with the A419 roundabout on Junction 15 while being pursued by police. 

Wiltshire Police referred itself to the Independent Office for Police Conduct (IOPC) and in February the organisation confirmed a police officer was under investigation for causing death by dangerous driving and was handed a gross misconduct notice.

Also in February, Thames Valley Police, who are undertaking a parallel criminal investigation into the driving of the Astra, arrested a man on suspicion of causing death by dangerous driving who has been released on bail. 

Thames Valley Police were contacted for an update on the investigation.

It confirmed no charges had been brought against the man arrested earlier in the year, and added only that "There are no updates on this investigation, which is still ongoing at this time."

When also approached for an update, Wiltshire Police said it did not have anything further to add.

The IOPC says its investigation is ongoing but it has no substantive update at present. 

In its earlier statement, a spokesperson for the IOPC said: "We have established that minutes prior to the collision three police vehicles had unsuccessfully attempted to execute a controlled stop of the Astra through a boxing-in manoeuvre on the M4.

"A pursuit on the M4 eastbound continued with police vehicles operating their emergency lights and sirens.

"The Astra and one of the police vehicles exited the motorway at Junction 15, driving up the slip road at speed where both vehicles went through a red light at the end of the slip road before they crashed into the traffic island.

"Both officers in the police vehicle sustained minor injuries."

It added that it was the constable driving that specific police vehicle that is under criminal investigation and also gross misconduct investigation for "potentially breaching police standards of professional behaviour."

After his death, Jamie's family released a tribute to the young man

They said: "He was a cheeky chappy, a very talented football player and an all-round sportsman.

"He had such an infectious laugh and knew how to light up a room. He had the best sense of humour and had anyone who met him in fits of laughter.

"Jamie was very popular and never forgot anyone he met and vice versa - he left a lasting impression on anyone who met him."