A baby has been born in China to a surrogate mother four years after his parents died in a car crash.
The BBC says the couple, who died in 2013, had frozen several embryos hoping to have a child through IVF.
After the accident, their parents fought a protracted legal battle to be allowed to use the embryos.
The boy was born in December to a surrogate from Laos and The Beijing News first reported the case this week. The newspaper explained how the lack of precedent for a case of this kind had forced the deceased couple's parents through the legal battle.
At the time of the accident, the embryos were stored safely in a Nanjing hospital, frozen at minus 196 degrees in a liquid nitrogen tank.
A court battle gave the four grandparents‑to‑be the right over the fertilised eggs.
There was no precedent as to whether they could inherit their children's frozen embryos.
With surrogacy illegal in China, the only realistic option was to look beyond the country's borders. Eventually, the future grandparents worked with a surrogacy agency and decided on Laos, where commercial surrogacy was legal.
As no airline was willing to accept a thermos‑sized bottle of liquid nitrogen, the precious cargo had to be transported by car.
In Laos, the embryo was implanted into the womb of the surrogate mother and in December 2017 the boy was born.
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