Police are investigating the death of a man at a Sydney hospital shortly after a woman allegedly sabotaged gas mains at the facility and another nearby.

A 42-year-old woman was arrested yesterday morning after she allegedly entered the grounds of Kareena Private Hospital and Sutherland Hospital, both on Kareena Road in Caringbah, and committed the acts of vandalism.

At the first hospital, the woman allegedly cut the water and gas mains before activating the fire hoses, while at the second she allegedly switched off the gas main.

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She was arrested on a breach of bail later in the morning and charged with two counts of public nuisance, two counts of entering a prescribed premises of any person without lawful ex

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