Democratic Rep. Brenda Lawrence's (Mich.) chief of staff has resigned following allegations that he sexually harassed multiple former office staffers.

Lawrence announced Thursday that she accepted the resignation of Dwayne Duron Marshall, who she placed on administrative leave last week while she investigated the claims against Marshall, according to the Detroit News.

"I will move forward with an investigation focused on the current and future climate of our workplace environment," Lawrence said in a statement.

"No employee should ever be made to feel intimidated, harassed, or otherwise discriminated against in their place of work," she added. "Every employee should feel free to present their concerns with the expectation that those concerns will be quickly and directly addressed and resolved."

Lawrence said that she had not heard of the allegations against Marshall until last week.

Three former female aides told Politico last week that they personally brought complaints to Lawrence about Marshall inappropriately touching them or commenting on their appearances. The aides said that Lawrence was well aware of Marshall's conduct in the office

Lawrence has struggled to retain employees because of Marshall's behavior, a source familiar with Marshall's behavior told the Detroit News last week.