Jose Martin Duran Romero, 27 (pictured), was reportedly driving drunk on Sunday when he crashed into an ambulance carrying a three-year-old boy to a hospital. The boy, who has not been named, later died

A toddler who was being transported to hospital in an ambulance has died after a drunk driver struck the vehicle.

The Winston-Salem Police Department says they were informed at 6:05pm on Monday that the three-year-old boy had died at Wake Forest Baptist Medical Center. Authorities offered no additional details.

The boy was being taken to the hospital trauma center around 1am Sunday when a drunk driver - who turned out to be an illegal immigrant - hit the medical transport, causing it to roll over on its side, police said.

The driver, 27-year-old Jose Martin Duran Romero and his passenger, 33-year-old Andres Leon, initially tried to flee the scene. A witness stopped one of the men from leaving while the other was quickly apprehended by police.

Two hours after the crash, Romero submitted to a breathalyzer and registered more than two times the legal limit of alcohol in his system. Police also learned that he is in the country illegally and that he has never had a driver's license.

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The family has not identified the boy. However, the boy's mother, who was in the car with him at the time and suffered minor injuries, has been identified as Lyndsay Ann Oakes, right. Oakes is pictured above with her boyfriend and two of their sons

According to court documents, a witness told police after the crash that Romero had 'bloodshot, glassy eyes', slurred speech' and looked 'grossly impaired'.

He was allegedly so drunk that he couldn't even sign his name to court documents and wasn't aware that he had hit an ambulance with a small child inside.

Gary Oakes of Wise, Virginia, said in a brief phone interview Monday that his grandson had been under medical care before the crash but didn't want to elaborate. Asked how the family was coping, Oakes said, 'It's devastating.'

Romero crashed into the side of the ambulance, causing it to roll over onto the side of the road

The ambulance had been driving for more than three hours when the crash happened. It had picked up the boy and his mother from their home in Wise, Virginia and was just minutes away from their destination - Wake Forest Baptist Medical - when the crash happened

The boy's mother, 27-year-old Lyndsay Ann Oakes, was in the ambulance with him and suffered minor injuries. Reached by phone, she declined to be interviewed.

The driver of the ambulance, 34-year-old Joshua Sewayne Church, and its paramedic, 55-year-old Rickey Clayton Ratliff, also sustained minor injuries.

It's not clear why the boy was being treated before the crash, but Police Lt. Rick Newnum has said the boy was in stable condition before the ambulance was hit. The ambulance had been driving for more than three hours, after picking up the boy and his mother in Wise. The boy's name hasn't been released.

Romero faces charges of driving while intoxicated, failing to reduce speed to avoid a crash and driving without a license.

He was initially ordered held on $50,000 but that bail was later revoked and authorities have put him under an immigration detainer, meaning U.S. Immigration and Customs Enforcement agents will be able to take him into custody when he is released from jail for possible deportation.

Romero's passenger was charged with failure to render aid and was ordered held on $1,000 bail, but appears to have bonded out by Sunday night.

Romero is set to make his first appearance in Forsyth District Court Tuesday morning, following by a hearing on April 17.