Authorities say a pedestrian was killed as he tried to cross a busy central New Jersey highway.

Mercer County prosecutors say the 51-year-old man was struck by a sport utility vehicle just after 10 p.m. Saturday as he tried to cross Route 1 in Lawrence Township. The man, believed to be a Michigan resident, was by himself when the accident occurred, and no other vehicles were involved.

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The man's name has not been released, pending notification of relatives.

No charges have been filed in the accident, but the investigation is ongoing.