“World News Tonight” co-anchor Bob Woodruff and his cameraman, Doug Vogt, were seriously injured Sunday when their convoy was hit by an explosive device in Taji, Iraq, according to ABCNews.com.

Woodruff and Vogt both suffered head injuries and were undergoing surgery late Sunday at the U.S. military hospital in Balad, ABCNews.com’s report said. They and their four-man team, embedded with the 4th Infantry Division, were traveling in a convoy with Iraqi security forces. The explosion was followed by small arms fire, the report said.

Mr. Woodruff began serving as co-anchor of “World News Tonight” earlier this month. He was previously the anchor of the weekend edition of “World News Tonight” and served as an ABC News correspondent.