Federal officials will investigate the fatal shootings that took place on a New Orleans bridge following Hurricane Katrina.

The Civil Rights Division of the Department of Justice and the U.S. Attorney’s office in New Orleans announced Tuesday they will investigate.

The announcement comes after the dismissal of charges against seven New Orleans police officers accused of gunning down two men on a bridge in the chaotic aftermath of Hurricane Katrina.

Religious and civil rights groups in New Orleans had called for the district attorney to refile charges against the officers.

The family of one of the men shot had also asked for the Justice Department investigation.