"I can confirm that colonel Gaddafi is ready to retreat completely from political and public life with a firm engagement that we would impede the setting up of a multi party system but on the condition that the NATO airstrikes cease," Mesic said in a statement quoted by Hina news agency.
The former president added that he had a "personal verbal message" from Gaddafi last week with the offer and added he told the Chinese, Russian and American ambassadors to Croatia about it yesterday.
"The authorities in Tripoli have tried to get this message out via all the available channels to countries that have played a crucial role in the organisation and the operations in Libya," Mesic added in the statement.