Paris: Muammar Gaddafi’s son Saif al-Islam on Tuesday ridiculed the reports of the Libyan leader stepping down by saying that it is time to inject new blood into the country's leadership as my father is too old to control everything, but the talk of leaving power is truly ridiculous, according to a report.

"We are ready to discuss even with the devil, but even the devil should know that there are red lines," Saif said, referring to attempts to force his father to resign.

Commenting on the international intervention in Libya, Saif spoke about France's loss in the war, both economically and politically, and criticised Qatar's agreement with Libya's opposition based in Benghazi.

An African Union delegation arrived in Benghazi Monday for a ceasefire plan after Gaddafi reportedly accepted a deal to bring to an end the political standoff.

But rebels still demanded Gaddafi's stepping down.

Meanwhile, Italian Foreign Minister Franco Frattini has said Gaddafi and his family should have no role in Libya's future.

He called on diplomats to increase pressure on Gaddafi, and said his removal from power should take place in "weeks, not months".

A US State Department spokesman also made it clear that Gaddafi's departure from power was "non-negotiable".