Italian Premier Silvio Berlusconi will face a do-or-die no-confidence vote in Parliament on December 14, news reports say.

He has been battling former ally Gianfranco Fini, who has urged Berlusconi to resign and this week withdrew from the Government four officials from his breakaway faction.

Berlusconi is set to address Parliament on December 13, news agencies said.

The next day, the lower house of Parliament will vote on a no-confidence motion, while the Senate will vote on a motion in support of the Government by Berlusconi's allies.