There has been a significant improvement in the medical condition of a former head of Israel’s Mossad intelligence service, who has spent more than two months on life-support systems while recovering from a liver transplant operation.

Meir Dagan, 67, who headed the agency from 2002 to 2011, had the life-saving surgery in October in Belarus as treatment for an undisclosed disease. He was kept in isolation for 10 days after the procedure as a safeguard against infection.

Shortly after the surgery, he was transferred to a hospital in Israel where he has been slowly recovering. Doctors said that if his condition remains stable he is expected to be released from the hospital next week.