Authorities are investigating the deaths of a retired suburban New York police officer and his two teenage daughters.

The Journal News (http://lohud.us/1Ls7H8O ) says the three were killed Saturday at their home in the Westchester County village of Harrison, about 20 miles northeast of Manhattan.

Neither the Harrison police nor the White Plains Police Department, where the ex-officer had worked for 22 years before retiring recently, would provide details on the shootings.

White Plains Police Commissioner David Chong released a statement identifying the former officer as Glen Hochman, and called the deaths "an unfathomable tragedy."

In a statement, a Harrison school official says the deaths of students Alissa Hochman and younger sister Deanna Hochman is an "incomprehensible tragedy." She says the school would open Sunday to assist students and families.