The crisis engulfing the Catholic Church deepened as the outgoing Pope effectively sacked Britain's most senior cleric, who has been accused of inappropriate behaviour towards young priests.
Cardinal Keith O'Brien apologised to "all whom I have offended", but his immediate removal from office means he will not now travel to Rome to choose a successor to Pope Benedict XVI - an attempt by the Vatican to prevent the occasion being overshadowed by further scandal.
The Vatican faces mounting pressure to ban other cardinal electors tainted by claims of sexual misdeeds.
O'Brien is the first Catholic clergyman of the highest rank to be forced out since Cardinal Groer in 1998, when the Austrian apologised but did not admit molesting youths at a monastery in the 1970s. It was alleged that attempts by the then Cardinal Joseph Ratzinger to investigate were blocked by Pope John Paul II.
The conclave to choose a new Pope could now start as early as this week after Benedict again defied convention by scrapping the 15-day waiting period between pontiffs.