MAMARONECK, N.Y. (CBSNewYork) – A toddler is dead and her mother is hospitalized after what police are calling a “tragedy” in Westchester County.

Mamaroneck police were called to a home on Chester Avenue around 1:30 p.m. Saturday. Sources had told CBS2 a woman was trying to harm a child.

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“Upon arrival, the officers located the child, approximately two and a half years old, in need of medical aid. The officers started life-saving measures and requested an ambulance to the location,” Village of Mamaroneck Police Sgt. Sandra DiRuzza said. 

Police then found the 28-year-old mother inside the home and ordered her to show her hands.

“The female then attacked the officers with a knife, injuring two of them,” said DiRuzza. “Tasers were deployed, which failed to stop the female. The female was then shot by one of the officers.”

The mother and toddler where taken to the hospital, where the child later died.

Two officers were treated for minor injuries, and two others were evaluated.

Neighbors told CBS2’s Lisa Rozner they were shocked, because it’s usually a quiet area.

“I saw cops coming down the block, ambulances coming down the block, firetrucks. It was obviously something big, because it was like every cop in the world,” one man said.

“There were several officers running with assault rifles,” another added.

Neighbors also said officers had been questioning a man at the home the day before.

“I just looked out the window, and it was like two cops were talking to him. And I was like, ‘I wonder why,'” one person said.

“There’s a variety of people that live there. One is a youngish mother, I believe,” added another.

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It’s unclear whether that was related to Saturday’s incident.