A medical examiner has determined that iconic designer Kate Spade died of suicide by hanging, the New York Post reports.

Spade, 55, was found hanged by a scarf in her Park Avenue apartment late Tuesday morning. She reportedly left a suicide note addressed to her 13-year-old daughter, telling the girl that the decision was not her fault and not to blame herself.

Kate’s husband and creative partner Andy Spade released a statement to the New York Times on Wednesday, acknowledging that the couple had hit a rough patch in their marriage and had been living in separate apartments, but insisting they had no plans to divorce.

Andy Spade also said that his wife had sought medical attention for mental health struggles in the years before her death.

“Kate suffered from depression and anxiety for many years. She was actively seeking help and working closely with her doctors to treat her disease, one that takes far too many lives,” Andy Spade said in the statement, while noting that his wife’s suicide came as a shock.

An unnamed source told Page Six that Kate had been a “major alcoholic,” while additional anonymous sources also claimed that Kate appeared to have a drinking problem.

On Wednesday, Kate’s father told the Kansas City Star that his daughter had been prescribed unidentified medication, which he urged her not to take.

“She’d been taking some pills, which I advised her not to take,” Frank Brosnahan told the newspaper.

Brosnahan said he last spoke to Kate the night before her death, and that she seemed to be in good spirits, discussions plans for a trip to California with her daughter.