CLIFTON — The state Attorney General’s Office on Friday launched an investigation after a Clifton police officer responding to a call struck and killed a pedestrian.

The accident occurred Thursday evening at the intersection of Allwood and Brookwood roads.

According to the preliminary investigation, the officer was responding to a report of a crime in progress and had activated the emergency lights on his patrol vehicle when he hit the woman. Officials did not explain what the crime was.

The officer provided medical aid to the woman, officials said. She was taken to St. Joseph’s University Medical Center in Paterson, where she died about 30 minutes later.

Officials have not released the name of the woman or the officer.

State law requires the attorney general’s office to investigate when a person dies during an encounter with a law enforcement officer acting in an official capacity.

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