It only happens around once in every 80,000 births, so this video has captured a very special moment indeed.
A clip shared on Facebook shows a baby being delivered en caul – that is, still in the amniotic sac.
The caption explains that the baby was a second-born twin. The baby was left in the sac as the medical team stabilised the firstborn twin.
Doctors can be seen massaging and touching the baby through the sac as it remains unaware of the fact it has been born.