A Catholic brother accused of sex abuse in the U.S. has been convicted in Australia of a string of decades-old child sex offenses.

Bernard Hartman was accused of abusing four children in the 1970s and 1980s, when he worked as a teacher at St Paul's College, a secondary school in Melbourne.

Harman returned to Australia from the U.S. to face the charges at three separate trials.

He pleaded guilty in Victoria state County Court to four counts of indecent assault against two girls. In a separate trial, he was convicted of one charge of indecent assault and two charges of common law assault against a man who had once been his student. Last week, he was found not guilty to a charge of indecent assault against another man.