LOS ANGELES - Britney Spears filed an emergency court motion seeking to expand visitation rights with her children, the lawyer for ex-husband Kevin Federline said Wednesday.

Federline lawyer Mark Vincent Kaplan told The Associated Press that he received the motion Wednesday and will be in court Thursday.

Kaplan did not elaborate on what Spears was seeking, but criticized the motion, pointing out that the judge's decision was barely a week old.

"I don't see any emergency or any new facts" in the case, Kaplan said in a telephone interview. "We are going to oppose this."

Kaplan said Federline would not be in court.

"When there is something of substance being addressed, he'll be there," Kaplan said.

An after-hours call to Spears' attorney was not immediately returned.

Spears was ordered Oct. 1 to relinquish custody of her children by a court commissioner who had raised concerns about drug and alcohol use.

Superior Court Commissioner Scott M. Gordon later granted some visitation rights to Spears, but required that a monitor must watch her while she's with her sons, 2-year-old Sean Preston and 1-year-old Jayden James.

The visits could be cut short if the monitor decides any behavior or action by Spears endangers the children.

Gordon had previously said Spears engaged in "habitual, frequent and continuous use of controlled substances and alcohol" and ordered her to undergo random drug and alcohol testing twice a week as part of her ongoing custody dispute with Federline.

Spears, 25, and Federline, 29, were married in October 2004. She filed for divorce last November and it became official in July.