Harry Dunn's mum angry as man leaves UK after crash

Charlotte Charles has been speaking for the first time about another US citizen leaving the UK after a crash

The mother of Harry Dunn, killed in a crash involving a US citizen who claimed diplomatic immunity, has spoken of her anger over a similar incident.

Charlotte Charles said she felt "sheer outrage" at Isaac Calderon's return to the US after the crash in which Elizabeth Donowho, 56, was hurt.

US citizen Mr Calderon, 22, failed to appear in court on 1 December over the crash on the A4103 in Herefordshire.

A warrant for his arrest has been issued.

He is charged with causing serious injury by dangerous driving to Ms Donowho, a mental health nurse.

She was left unable to walk following the crash, near Shucknall.

Police have told her he was working on matters "that might come under the Official Secrets Act".

Harry Dunn died after a collision with a car outside RAF Croughton in Northamptonshire

Motorcyclist Mr Dunn, 19, was killed outside RAF Croughton in Northamptonshire in 2019.

Anne Sacoolas, the US citizen responsible for his death, was eventually sentenced to eight months in prison, suspended for a year.

Ms Charles, of Charlton, Northamptonshire, said Ms Donowho had got in touch with her.

"As soon as she reached out to us for help, the first initial feeling was just sheer outrage that this had happened again," she said.

"She's the sweetest, kindest nurse, as all of our nursing heroes are, and there was no way that we could leave her."

Speaking to BBC Radio 4's Today programme, she added: "They should never have allowed him to leave; he [Mr Calderon] should never have been able to get out of this country. He should be facing the UK justice system."

Elizabeth Donowho, a mental health nurse, said she felt "let down" after Isaac Calderon was apparently able to leave the country

Ms Donowho, of Malvern, Worcestershire, told BBC Hereford and Worcester that police should have done more to stop Mr Calderon leaving.

"I feel very let down by them, because they assured me that the other driver would face the justice system and that they had taken all the appropriate steps," she said.

Radd Seiger, the lawyer who has advised Mr Dunn's family, said the government had promised rules had been tightened after Sacoolas left the country following Mr Dunn's death.

He said he was "horrified" Mr Calderon had been allowed to leave the UK.

Also speaking on Today, he said: "Disappointingly he wasn't bailed and his passport wasn't taken off him."

Mr Seiger, who is assisting Ms Donowho, said West Mercia Police should have done more.

He said: "They've bungled this here. Their job was to make sure he appeared in court on 1 December and he took the opportunity a week before to leave the country, so, unlike Anne Sacoolas... this man does not have diplomatic immunity."

West Mercia Police said: "We are engaging with [Mr Calderon's] solicitor to inform him of the warrant and the need for him to return to the UK.

"We have also prepared appropriate paperwork should we need to request extradition, to ensure that the case can be heard in court."

The Home Office said it would neither confirm nor deny whether an extradition request had been made until the suspect had been arrested, as a matter of longstanding policy and practice.