Coretta Scott King, widow of the Rev. Martin Luther King, Jr, has died at the age of 78.

"We appreciate the prayers and condolences from people across the country," the King family said in a statement. The family said she died during the night. The widow of the Rev. Martin Luther King Jr. suffered a serious stroke and heart attack in 2005.

"It's a bleak morning for me and for many people and yet it's a great morning because we have a chance to look at her and see what she did and who she was," poet Maya Angelou said on ABC's "Good Morning America."

"It's bleak because I can't — many of us can't hear her sweet voice but it's great because she did live, and she was ours. I mean African-Americans and white Americans and Asians, Spanish-speaking — she belonged to us and that's a great thing."

Former Atlanta Mayor Andrew Young, the civil rights activist who is close to the King family, broke the news on NBC's "Today" show: "I understand that she was asleep last night and her daughter (Bernice King) went in to wake her up and she was not able to and so she quietly slipped away. Her spirit will remain with us just as her husband's has."