(CNN) -- Mary Kennedy, from whom Robert F. Kennedy Jr. filed for divorce in 2010, is dead, an employee of the Westchester County, New York, medical examiner's office said Wednesday.

The employee, who declined to give his name, told CNN he would provide no further details about the manner and cause of death. Kennedy was 52.

The family released a statement saying, "We deeply regret the death of our beloved sister Mary, whose radiant and creative spirit will be sorely missed by those who loved her. Our heart goes out to her children who she loved without reservation."

http://www.cnn.com/2012/05/16/us/mar...html?hpt=hp_t1