British media has named entertainer Rolf Harris as the Australian arrested and questioned last month over historic sex abuse allegations.

London police will not confirm the man's identity and the ABC has not been able to independently verify the reports.

What little information is available is based on a statement from London's metropolitan police last month.

It followed the arrest of a then 82-year-old man, on suspicion of sexual offences.

He was bailed to a date in May, pending further enquiries.

The arresting officers were from Operation Yewtree, which is the investigation prompted by the child sexual abuse allegations against late BBC TV star Jimmy Savile.

The alleged offences at the centre of last month's arrest are not linked to Savile.