OAKLAND — A female sergeant has filed a sexual harassment complaint against Deputy Police Chief Jeff Loman, one of the department's highest-ranking officers, officials confirmed Tuesday.

The complaint initially was filed with the department's Internal Affairs Division in November but has since been turned over to an outside investigator. No official findings have been made.

Loman, who oversees the Bureau of Services, is still working his official duties.

Assistant Chief Howard Jordan confirmed a probe is under way.

"We want to be fair and be transparent about it," he said. "And that's why we have an independent investigation."

Sources have said an agreement may be in the works to prevent the complaint from becoming a lawsuit against the department or the city. So far, no claim or lawsuit against the city has been filed.

Loman's lawyer said her client did nothing wrong.

"There is no truth to any of the allegations," said Alison Berry Wilkinson, a San Rafael attorney. "And we are looking forward to an exoneration."

The Tribune is not identifying the sergeant at this point. She declined to comment Tuesday and the attorney representing her could not be reached.

The sergeant is on a list to be promoted to lieutenant. Sources said she filed the complaint after becoming uncomfortable when Loman reportedly discussed meeting her for dinner to discuss a possible promotion.

Loman is one of three deputy chiefs in the department.

It is not clear whether the investigation involves other members of the department.

Loman was previously the captain in charge of the criminal investigation division for which the sergeant works before he was promoted to deputy chief in early 2008.

He filled in briefly as Mayor Ron Dellums' top public safety adviser after Lenore Anderson left in June.

Loman was not working in the mayor's office when the complaint was filed.

Dellums' office and City Attorney John Russo's office declined to comment Tuesday.

Loman is also among the officers under probe in the department's handling of the investigation into journalist Chauncey Bailey's killing in August 2007.

Reach Kelly Rayburn at 510-208-6435 or krayburn@bayareanewsgroup.com.