Chris Cuomo, co-anchor of the ABC News evening newsmagazine “Primetime,” has been named news anchor of “Good Morning America.” He will begin his new role on Tuesday, Sept. 5, joining anchors Diane Sawyer and Robin Roberts live from “GMA’s” Times Square studio each morning.

As news anchor, Cuomo will be responsible for the “GMA” news block reports that air multiple times during the broadcast. In addition, he will be the principal substitute anchor for Ms. Sawyer and Ms. Roberts and will contribute feature reports and enterprise stories for “GMA.” He will also travel to the locations of breaking news stories around the world for the broadcast.

Mr. Cuomo will continue as one of the anchors of “Primetime,” a position he has held since April 2004. He also contributes to other ABC News platforms as the network’s senior legal correspondent.

Mr. Cuomo joined ABC News in 2000. Prior to that he was a correspondent for the Fox News Channel and the Fox broadcast network’s “Fox Files.” He received his law degree from the Fordham School of Law and his undergraduate degree from Yale University. He is the son of former New York Governor Mario Cuomo and the brother of Andrew Cuomo, who is currently running for attorney general in New York.