Polish Prime Minister Kazimierz Marcinkiewicz resigned on Friday amid growing tensions with leaders of his Law and Justice party.

The party has recommended its leader Jaroslaw Kaczynski, twin brother of President Lech Kaczynski, to take over as the next prime minister, local media reported.

"The political council of Law and Justice has been informed of the resignation of Prime Minister Kazimierz Marcinkiewicz and unanimously recommended Jaroslaw Kaczynski for new prime minister," a party spokesman was quoted as saying.

Marcinkiewicz has recently become increasingly at odds with Kaczynskis.

Marcinkiewicz's meeting with opposition leader Donald Tusk this week and earlier appointment of his aide as new finance minister were the last straw for the party leadership, report said, quoting party sources.

(Xinhua News Agency July 8, 2006)