Polish ruling party leader Kaczynski has knee surgery

An official says Poland's powerful ruling party leader Jaroslaw Kaczynski has successfully undergone a planned knee surgery

WARSAW, Poland -- An official says Poland's powerful ruling party leader Jaroslaw Kaczynski has successfully undergone a planned knee surgery.

Law and Justice party official Malgorzata Gosiewska said Tuesday he was doing fine.

Gosiewska told RMF FM radio that Kaczynski will be returning to work soon.