GLENDORA, N.J. (CBS) — Eight people were injured, one critically, following a chain-reaction crash that involved a school bus and six other vehicles in Camden County Wednesday morning.

The crash happened at about 9:30 a.m. on the Black Horse Pike near Chews Landing Road in Glendora, New Jersey.

The crash involved a school bus and six other vehicles.

Authorities say eight people were injured. Three people were taken to Cooper University Hospital; one is in critical condition, another was initially listed in critical condition but was upgraded to stable condition and a third is listed in stable condition.

Three others were taken to Kennedy Health System in Stratford and two more were taken to Underwood Hospital in Woodbury.

According to reports, the occupants of the school bus were senior citizens who were en-route to a senior center. A driver and five others were aboard the school bus.

The cause of the crash remains under investigation and so far no charges have been filed.

Black Horse Pike was closed for several hours while officers investigated the crash. It reopened about 1:30 in the afternoon.

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