Authorities say firefighters had to use a pry bar and ax to enter a Massachusetts apartment to rescue a baby whose nanny was so drunk she couldn't figure out how to open the door.

The nanny, 52-year-old Susan Conway-Lilly, pleaded not guilty Thursday to child endangerment and was released on personal recognizance.

Firefighters were called after the child's mother arrived at her Salem home Wednesday to find her 4-month-old daughter inside crying and Conway-Lilly unable to open the door.

Police say Conway-Lilly smelled of alcohol, needed help standing and had a blood-alcohol content of .32, four times the legal limit to drive. A near-empty 750-milliliter bottle of vodka was in her bag.

Conway-Lilly tells The Salem News (http://bit.ly/1S8mTho ) she has struggled with alcohol her whole adult life and is sorry.

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Information from: The Salem (Mass.) News, http://www.salemnews.com