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Firefighters are investigating a vehicle fire early Saturday morning at the construction site of a Planned Parenthood facility on South Claiborne Avenue.

The New Orleans Fire Department said it was not clear whether the fire was related to a series of protests that have been held at the site as Planned Parenthood has come under intense national scrutiny.

Firefighters arrived at the scene of the blaze about 3:45 a.m. to find the front end of a parked vehicle alight.

The vehicle had been parked inside a locked gate at the construction site, fire officials said.