A son of Libyan leader Muammar Qadaffy is mediating in the case of two Austrians held by al Qaeda in North Africa and is hopeful they can be freed soon, an Austrian politician was quoted as saying on Saturday. Saif al-Islam, who heads the Qadaffy Foundation charity, was in touch with the kidnappers, Carinthia governor Joerg Haider told the Austrian news agency APA. The mediation of Qadaffy's son, who has studied in Austria and is a friend of right-wing populist Haider, raised some hopes for the release of the two Austrian tourists who were seized in Tunisia last month and are reported to be held in northern Mali.The Algerian-based al Qaeda in the Islamic Maghreb said it seized them on February 22 and in Web postings on Islamist forums has demanded a ransom and the liberation of 10 militants held in Algeria and Tunisia. It has set a deadline of midnight on Sunday for its demands to be met. "Negotiations have entered a decisive phase," Haider quoted Saif al-Islam as saying on Saturday, according to APA. "Saif believes that in the next few days there could be a decision on the fate of the Austrians," Haider said. It was the third time they had spoken in about 10 hours. Earlier on Saturday, Haider quoted Saif al-Islam as saying: "It is going well."