Anger has mounted after a US citizen believed to be working for US intelligence services 'fled' Britain following a car crash that left a nurse unable to walk.
Isaac Calderon, 22, failed to attend a court hearing after being accused of causing serious injury to 56-year-old Elizabeth Donowho by dangerous driving in a collision on the A4103 near Shucknall in Herefordshire on July 31.
Mrs Donowho, from Malvern, Worcestershire, said she was unable to walk for six weeks after the crash which left her with a broken sternum and two broken ankles.
Calderon, who is said to be 'associated with the secret services', was due to appear at Kidderminster Magistrates' Court on December 1 but instead boarded a commercial flight to Texas, police said.
Pressure is now mounting on the government as it considers seeking Calderon's extradition. The sun that she is “appalled that the authorities allowed this to happen.”
Elizabeth Donowho was unable to walk for six weeks after the collision on the A4103 near Shucknall in Herefordshire on July 31
Mrs Donowho, from Malvern, Worcestershire, said she was unable to walk for six weeks after the collision, which left her with broken ankles, a broken sternum and a broken bone in her hand.
Pictured: Scans show Elizabeth Donowho's ankle after the crash that left her unable to walk for six weeks
Radd Seiger (left), who has acted as an advisor and spokesperson for Harry's Dunn's family, including his mother Charlotte Charles (right), now supports Mrs Donowho (centre)
The incident has drawn comparisons to the case of US citizen Anne Sacoolas, who pleaded guilty via video link at the Old Bailey to causing death by careless driving in the case of Harry Dunn in August 2019.
Sacoolas, who had been driving on the wrong side of the road, was able to leave Britain when the US government claimed diplomatic immunity on her behalf following the teenage motorcyclist's murder.
It is believed there are no issues surrounding diplomatic immunity in Mr Calderon's case.
Radd Seiger, who has acted as an adviser and spokesman for Harry's family, is now supporting Ms Donowho.
He branded Calderon “a fugitive on the run” and said he should be “immediately returned to Britain.”
West Mercia Police told Ms Donowo that the 22-year-old suspect had been carrying out work 'in connection with the Secret Service' prior to the crash and had been working on matters 'which may fall under the Official Secrets Act'.
Police also told the 56-year-old that the 'extradition process' has now begun after Calderon left the country to return to Houston, Texas, in the US on a commercial flight on November 25.
Police also told Ms Donowho they had received 'assurances' from his employer that he would not leave the country, but did not specify who the employer was.
said the nurse: 'He could be anywhere in the world right now, I doubt we'll ever see him again.'
Mrs Donowho broke both her ankles in the collision, suffered a broken sternum and a broken bone in her hand.
According to the Hereford Times, the suspect's occupation was listed as an American soldier during the hearing in December.
Calderon has been described as a “private individual” by the US embassy and police said he had been in Britain on a work visa.
It is clear that there are no issues surrounding diplomatic immunity in this case.
Police were not informed of any intention Calderon had to leave Britain, it is understood.
Pictured: The A4103 near Shucknall in Herefordshire, where the accident occurred on July 31
He had been interviewed by officers on August 15, 15 days after the first crash, as he needed immediate hospital treatment.
West Mercia Police confirmed Calderon's departure, saying: 'On Friday 1 December 2023, a warrant was issued at Kidderminster Magistrates' Court for the arrest of 22-year-old Isaac Calderon, who is wanted for failing to appear in court appeared charged with causing serious injury by dangerous driving.
'Mr Calderon is a US citizen who, we understand, was in Britain on a work visa.
'Our investigation has revealed that he left Britain on November 25 and flew to the United States.
'We are in discussions with his lawyer to inform him of the order and the need for him to return to Britain.
“We have also prepared the appropriate paperwork if we need to request extradition, to ensure the case can be heard in court.”
Harry Dunn was killed when his motorbike crashed into a car outside the US military base RAF Croughton
Anne Sacoolas was able to leave the United Kingdom when diplomatic immunity was asserted on her behalf
A U.S. Embassy spokeswoman said: “The U.S. Embassy does not comment on law enforcement matters involving private U.S. citizens.
“The US and Britain work closely together on law enforcement.”
The Home Office said it would not confirm or deny that an extradition request had been made until the suspect was arrested, as a matter of long-standing policy and practice.
MailOnline has contacted the US Department of State.