Ralph Godbee, Detroit police chief, suspended after alleged mistress tweets photo with gun in her mouth

Detroit Police Chief Ralph Godbee speaks during a news conference on Jan. 5 File, Brandy Baker, AP Photo/Detroit News

(CBS) DETROIT - Detroit Mayor Dave Bing suspended the city's police chief Tuesday amid allegations of a sexual relationship with another officer. This is the second time in two years that a Detroit police chief has been embroiled in a sex scandal, CBS Detroit reports.

"After learning of the allegations regarding Chief Ralph Godbee, I have placed him on a 30-day suspension pending a full and thorough investigation of this matter," Bing said in a released statement.

Godbee, 44, was allegedly involved in an affair with 37-year-old Angelica Robinson, an internal affairs officer for the Detroit Police Department. Her attorney stated that his client was trying to cut off the relationship and that Godbee "didn't like that."

Robinson's attorney told The Associated Press that Godbee had officers locate Robinson and put her under surveillance after she posted a photo of herself on Twitter with her service gun in her mouth. Robinson, who is married, allegedly posted the picture after learning Godbee was at a weekend conference with another woman.

Godbee, who is separated from his wife, became police chief two years ago following Chief Warren Evans' resignation after his relationship with a subordinate, Lt. Monique Patterson, was revealed.

It was later learned that Godbee also had a romantic relationship with Patterson before she dated Evans, according to CBS Detroit.

Bing appointed Assistant Chief Chester Logan to assume the duties and responsibilities of police chief during Godbee's suspension. Robinson was reassigned to other duties and doesn't have use of her service weapon.