Reynhard Sinaga was convicted of 159 offences in total, including 136 rapes. (AFP/HO)

LONDON: Britain's attorney general on Thursday (Jan 16) appealed against a minimum 30-year prison term given to an Indonesian man described as the country's worst-known sex offender, calling it "unduly lenient".

Geoffrey Cox asked the Court of Appeal to consider imposing a "whole life order" on mature student Reynhard Sinaga, 36, so he is never eligible for release from jail.