( CNN ) -- Civil rights activist Dorothy Height , 98 , remained in `` very serious , but stable condition '' Saturday , her friend and spokeswoman said . A flurry of rumors about Height 's death appeared Saturday on the Internet , particularly on the social networking site Twitter , where her name was a trending topic . Wikipedia also briefly reported Height 's death . Height remains hospitalized , according to Alexis Herman , her friend and former secretary of labor under President Bill Clinton . Height was admitted to Howard University Hospital earlier this week . Further details about her condition were not immediately available . `` We are grateful for the professional care of her doctors , '' Herman said in a written statement . `` We especially thank everyone for your thoughts , prayers and support during this challenging time . '' Height , who turned 98 Wednesday , is chair and president emerita of the National Council of Negro Women . In the 1960s , she worked alongside civil rights pioneers , including the Rev . Martin Luther King Jr. , future U.S. Rep. John Lewis and A. Philip Randolph . She has been active in civil rights since the New Deal era , according to her biography on the National Council of Negro Women 's Web site . As a leader of the United Christian Youth Movement of North America beginning in 1933 , `` she worked to prevent lynching , desegregate the armed forces , reform the criminal justice system and for free access to public accommodations , '' the site says . She was elected president of the NCNW in 1957 and held the post until 1998 . CNN 's Lindy Royce contributed to this report .
Mary Height , 98 , remains hospitalized ; no information available on her whereabouts . Wikipedia reported Saturday that she was dead ; she appeared on social networking site Twitter . Height has been active in civil rights since the New Deal era .