MAHWAH — Authorities say a single-car crash has left one teenage boy dead and another injured.

But it's not yet clear what caused the accident in Mahwah, which was reported around 10:30 p.m. Saturday.

Bergen County prosecutors say the two teens were passengers in the car, which crashed in the area of Bellgrove Drive and North Bayard Lane. But they did not disclose further details about the accident, citing the ongoing investigation.

The names of the two teens have not been released, pending notification of relatives.

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