"There are unconfirmed reports that more people have left the inner circle of Muammar Gaddafi, the Libyan leader, following the high level desertion of Moussa Koussa, Libya's foreign minister, who arrived in the UK on Wednesday.
It is understood a group of top officials who had headed to Tunisia for talks have decided to stay there.
Some Arabic newspapers said Mohammad Abu Al Qassiim Al Zawi, the head of Libya's Popular Committee, the country’s equivalent of a parliament, is among the defectors.
Nazanine Moshiri, Al Jazeera's correspondent in Tunis, said that Abu Zayed Dordah, Libya's prime minister from 1990 to 1994, has also been mentioned.
On Thursday, a second top official confirmed that he would not serve in Gaddfai's regime.
Ali Abdessalam Treki, a former foreign minister and UN general assembly president, had been named to represent Libya at the UN after a wave of defections early in the uprising.
Treki, who is currently in Cairo, said in a statement posted on several opposition websites that he was
not going to accept that job or any other.
'We should not let our country fall into an unknown fate,' he said. 'It is our nation's right to live in freedom, democracy and a good life.'"
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