The Justice Department has launched a probe of the Baltimore Police Department for a potential pattern of unconstitutional policing in the wake of the death of Freddie Gray. Attorney General Loretta Lynch announced the investigation.

Attorney General Loretta Lynch: “Today, the Department of Justice is opening an investigation into whether the Baltimore Police Department has engaged in a pattern or practice of violations of the Constitution or federal law. This investigation will begin immediately and will focus on allegations that Baltimore Police Department officers use excessive force, including deadly force; conduct unlawful searches, seizures and arrests; and engage in discriminatory policing.”

The Justice Department probe comes as attorneys for the six officers indicted over Freddie Gray’s death are challenging the role of Baltimore’s top prosecutor, Marilyn Mosby. On Friday, defense lawyers filed a motion demanding Mosby recuse herself because of alleged conflicts of interest and “egregious” violations. Mosby has rejected those calls and vowed to remain on the case.