LJUBLJANA (Reuters) - Slovenian Prime Minister Alenka Bratusek resigned on Monday after losing the battle for the leadership of her party 10 days ago.

In a tweet, Bratusek said she hoped an early election would take place before the summer.

Her center-left coalition government managed to save the country from an international bailout in December by pumping some 3.3 billion euros into Slovenia's troubled banks.

(Reporting By Marja Novak; editing by Zoran Radosavljevic and Kevin Liffey)