The New York City nanny recently accused of stabbing two children she cared for to death was charged with first-degree murder Saturday night, police told the New York Times. Yoselyn Ortega, 50, allegedly killed Lucia Krim, 6, and Leo Krim, 2, and tried to cut her own throat when the mother of the children, Marina Krim, came home to find the gruesome scene.

The murder took place on Oct. 25 in the Krim family’s Upper West Side apartment, although police hS held off charging Ortega because she was heavily medicated and unable to speak as doctors treated her wounds. Ortega also tried to commit suicide by slashing her wrists.

Ortega has been speaking with NYPD detectives from her hospital bed at New York-Presbyterian/Weill Cornell Medical Center. Police spokesman Paul J. Browne told ABC News the nanny was finally capable of understanding the charges against her, adding that Ortega was "no longer intubated and recuperating from what appeared to be wounds she inflicted herself at the crime scene."

Browne refused to comment on a motive for the murder but an anonymous source in law enforcement told the New York Post, “There was friction between her and the family.”

The nanny was referred to the Krims by a family friend and had been employed by them for almost two years. Marina Krim came home to find her two children dead in the bathtub after thinking Ortega was simply late to bringing them to a dance lesson.

Ortega’s relationship with the family had apparently been strained for some time, with sources reporting she was unhappy with her pay.

“She said something like, ‘I’m paid to watch the children, not clean up and do housework,’” the Post source said.

Other media outlets made it clear that Ortega had been struggling financially and had taken up selling makeup as a way to earn extra money. In a previous interview with the New York Times, Browne that revealed the stress was starting to add up.

“She was, according to others, seeking some professional help,” the spokesman said. “There were financial concerns.”