A 31-year-old mother is recovering after giving birth to sextuplets - thought to be Britain's first in 17 years.
The six tiny tots - four girls and two boys - were born last Friday at the John Radcliffe Hospital in Oxford.
The babies are being monitored at the centre's neonatal intensive care unit. Their mother, Vicky Lamb, from Oxfordshire, is said to be recovering well.
The six were delivered 14 weeks early, shortly after 11pm last Friday. Their birth weights ranged from 1lb 5oz (590g) to 1lb 15oz (885g), the hospital said.
Kenny McCormick, consultant neonatologist at the hospital, said: "The next few days and weeks will be critical. Babies that are born this early need a lot of specialist care.
"They are receiving round-the-clock intensive care and specialist nursing at the moment and their condition is constantly monitored."
The family are being represented by Max Clifford Associates.
Mr Clifford named the parents as Andy and Vicky Lamb, both 31, from Oxford.
Mrs Lamb fell pregnant after taking the same fertility drug she used before the pregnancy of her first child, Gracie, now aged five.
"They are just incredibly grateful for the John Radcliffe Hospital, the doctors and the nurses," the publicist said. Talking about when the couple might be able to take the six home, Mr Clifford said: "It is a long way off. They are fighting for their lives, they are still critical."