A Catholic monk convicted of a catalogue of sexual and violent offences on boys at a residential school has been jailed for seven years.

Michael Murphy, 82, who was known to his victims as Brother Benedict or Brother Ben, attacked the youngsters at St Joseph's List D School in Tranent, East Lothian, for ten years.

A jury found him guilty of 15 charges of assault and indecent assault on Thursday, after hearing harrowing evidence from his victims.

The trial heard that Murphy carried out sexual attacks, gave boys electric shocks and also used serious violence to intimidate the pupils in incidents which ran until 1981.

It emerged on Friday that Murphy had already been convicted of similar offences at St Ninian's School on Gartmore Estate near Stirling in the 1960s.

Murphy, a trained social worker from Hampshire, was jailed for a year in 2003 for the historic offences.

Defence advocate Peter Ferguson QC told the court on Friday that Murphy maintained his innocence, however accepted that a prison sentence was inevitable given the jury's verdict.

Lord Uist jailed Murphy for seven years and placed him on the sex offenders register for life.

He told him: "You are now 82 years old. I take into account that you have otherwise done some good over the years, but I must have regard to your previous conviction for ten earlier assaults on boys during the years when you worked at St Ninian's School, Gartmore between 1960 and 1969, which resulted in a sentence of 12 months imprisonment."