A worker at a Wal-Mart in Long Island, N.Y., died Friday from injuries he sustained after being trampled by unruly Black Friday shoppers at the opening of the store at 5 a.m. Friday.

According to the Associated Press, Nassau County police said the 34-year-old worker was taken to a hospital where he was pronounced dead at about 6 a.m., an hour after the store opened. The cause of death was not immediately known.

A police statement said shortly after 5 a.m., a throng of shoppers "physically broke down the doors, knocking (the worker) to the ground." Police also said a 28-year-old pregnant woman was taken to a hospital for observation and three other shoppers suffered minor injuries and were also taken to hospitals.

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