**Doctors in Australia are carrying out a delicate operation to separate conjoined twins from Bangladesh.**Trishna and Krishna, aged two, are joined at the top of the head.
The team of surgeons have almost completed separating the twins’ brains, but they are still joined by a bone bridge between their skulls.
The operation, which began at 2300 GMT on Sunday, was originally expected to take 16 hours, with a team of 16 doctors and nurses taking part.
Plastic surgeon Tony Holmes told reporters: “The children are prepared as well as could possibly be and we’re cautiously optimistic that everything is going particularly well.”
The girls were close to death when they arrived in Australia two years ago and they have already had several preparatory operations.
They were flown to Australia by the Children First Foundation, because of the poor survival rates after similar operations in Bangladesh.
However, doctors say the chance of a successful separation is still only one in four. They estimate there is a 25% chance one of the sisters will die, and a 50% chance the girls will suffer brain damage.