Respected PBS news anchor, moderator and journalist Gwen Ifill has died at the age of 61.
Her death was announced by PBS on Monday morning. She had been battling cancer for some time and she was surrounded by family and friends.
Ifill was the moderator and managing editor of Washington Week, in which she led roundtable discussions on major news stories with award-winning journalists, as well as being co-anchor and managing editor of PBS Newshour.
Her illustrious career included moderating two vice-presidential debates, between Dick Cheney and John Edwards in 2004 and Joe Biden and Sarah Palin in 2008.
Before she joined PBS in 1999, she worked at NBC News as the chief congressional and political correspondent, at the New York Times as the White House correspondent, and at the Washington Post, where she was the local and national political reporter.
Her earlier reporting roles were at the Baltimore Evening Sun and the Boston Herald American.
Members of the media and U.S. politicians have been paying tribute to her on Twitter.