Updated

Australia has asked Israel to explain the mysterious death of an Australian-Israeli citizen and alleged Israeli spy in an Israeli prison two years ago.

Foreign Minister Bob Carr said on Sunday he had asked Israel to contribute to his department's investigation into the case of the man who died in an Israeli prison in December 2010.

Carr had initially said last week his department had been unaware that the prisoner — who was known as Ben Zygier, Ben Allen and Ben Alon — had been in custody until his Australian family asked for his body to be repatriated.

But Carr corrected the record and ordered the departmental investigation on Wednesday after discovering that Australian intelligence officers had alerted some department officials to the arrest 10 months before his death.