Twin babies have been born to an Oregon couple from embryos frozen more than 30 years ago.
It is believed to be a new record for the longest-frozen embryos ever to result in a successful live birth.
They were stored at around -196C (-323F) in liquid nitrogen on 22 April 1992.
Rachel Ridgeway, a mother of four from Oregon, gave birth to the twins on 31 October.
The father, Philip Ridgeway, said it was “mind-boggling”.
Lydia Ann and Timothy Ronald Ridgeway likely set a new record, according to the National Embryo Donation Center (NEDC), a private faith-based organisation that says it has helped birth more than 1,200 infants from donated embryos.
NEDC’s previous record-holder, Molly Gibson, was born in 2020 from an embryo that had been frozen for nearly 27 years.