WARSAW (Reuters) - The sitting of Poland's lower chamber of parliament - the Sejm - has been postponed until 1000 GMT, Deputy Speaker Malgorzata Kidawa-Blonska said on Thursday.

The Sejm's sitting was adjourned on Wednesday by Speaker Marek Kuchcinski due to the opposition's ongoing occupation of the parliamentary podium and was set to start again at 0900 GMT on Thursday.

"The sitting of the Sejm has been moved to 1100 (local Warsaw time, or 1000 GMT)," Kidawa-Blonska of the opposition Civic Platform (PO) party told reporters.

(Reporting by Pawel Sobczak; Writing by Marcin Goettig; Editing by Marcin Goclowski)