Grieving relatives and family friends were preparing today to bury the conjoined Iranian sisters who died during surgery to separate them.

Iranian sisters Iranian Laleh and Laden Bijani died today, more than 48 hours into marathon surgery to separate the 29-year-olds who had been born joined at the head.

Ladan and Laleh Bijani, Iranian twins joined at the head, died today shortly after being separated from each other, doctors in Singapore said.

Ladan Bijani, one of two Iranian twins joined at the head, died today shortly after being separated from her sister, doctors in Singapore said.

One of the Iranian conjoined twins separated during a major operation today has died, a hospital spokesman has confirmed.