The former priest who reported Cardinal Keith O'Brien to the Vatican over the allegations of "inappropriate" behaviour has attacked the Catholic church's response to the complaints.
Cardinal Keith O'Brien resigned last Monday following allegations of inappropriate behaviour in the 1980s. He initially contested the claims with a spokesman confirming he was "taking legal advice".
He had been due to travel to the Vatican to help choose the next Pope, as the only British Roman Catholic cleric able to vote.
But he removed himself from the papal conclave because he felt the allegations against him would be "too much of a distraction".
He then issued a statement saying: "Looking back over my years of ministry: For any good I have been able to do, I thank God. For any failures, I apologise to all whom I have offended."
O'Brien, who was Archbishop of Saint Andrews and Edinburgh, was created and proclaimed a cardinal by Pope John Paul II in October 2003. He had been due to retire when he turned 75 later this month.
The full statement from Cardinal Keith O'Brien:
Cardinal Keith O'Brien has admitted at times "my sexual conduct has fallen below the standards expected of me as a priest, archbishop and cardinal" in an issued statement.
The Cardinal resigned last Monday from his position as Britain's most senior Roman Catholic cleric.
His departure came a day after the Observer newspaper reported that three priests and a former priest had complained about him to the Vatican over alleged "inappropriate" behaviour stretching back 30 years.
Tonight's statement was issued by the Catholic Church in Scotland.
Archbishop Philip Tartaglia said he felt "pained and distressed" after taking temporary charge of the UK Catholic Church following the resignation of Cardinal Keith O'Brien amid allegations of inappropriate behaviour:
The Archbishop of Glasgow, Philip Tartaglia, has been put in temporary charge of the UK Catholic Church following the resignation of Cardinal Keith O'Brien.
The Church said the Pope had appointed Archbishop Tartaglia as Apostolic Administrator of the Archdiocese of St Andrews and Edinburgh with immediate effect.
The former top Roman Catholic cleric in England and Wales has said the church is in need of reform and renewal after the recent scandals, and that it must be led by the new pope.
Cardinal Cormac Murphy O'Connor spoke to ITV News Social Affairs Editor Penny Marshall:
Peter Kearney, director of the Scottish Catholic Media Office, said the Cardinal's resignation had not been accelerated because of the allegations surrounding him.
He told STV News:
Gay rights groups have expressed their hopes that whoever is selected to replace Cardinal Keith O'Brien will do more to champion their cause.
The director of Stonewall Scotland, a charity that recently voted Cardinal O'Brien "bigot of the year", said he hoped a successor would "show a little more Christian charity towards openly gay people than the Cardinal did himself".
Tom French from the Equality Network said he hopes "that the Catholic Church in Scotland will use the opportunity new leadership brings to reassess its opposition to lesbian, gay, bisexual and transgender equality."
Scotland's First Minister has spoken of his sadness at the resignation of Cardinal Keith O'Brien, whom he described as a "good man for his church and country".
Responding to the announcement that the leader of Scotland's Roman Catholic Community is stepping down with immediate effect, Alex Salmond said: "I hear the news of Cardinal O'Brien's resignation with the greatest sadness.
"In all of my dealings with the Cardinal, he has been a considerate and thoughtful leader of the Catholic Church in Scotland.
Stressing that claims made against the Cardinal are still being investigated, Mr Salmond said: "It would be a great pity if a lifetime of positive work was lost from comment in the circumstances of his resignation."