The driver of a Nassau County bus that New York City police said struck and killed a woman in Queens on Saturday had no earlier blemishes on his bus driving record, but he has been placed on administrative leave while the crash is investigated, a spokesman for the Nassau Inter-County Express, or NICE, said Sunday.

NICE did not identify the driver, but said he drove a bus for the MTA from 2002 until January, when he began working for NICE.

The bus fatally struck the pedestrian -- a 54-year-old woman New York City police and NICE officials did not identify by name Sunday -- about 7 p.m. Saturday in Jamaica as she came into contact with the rear side of the vehicle, authorities said.

The bus was turning left from Hillside Avenue onto Merrick Boulevard, authorities said.

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"NICE officials offer their heartfelt sympathy to family members over this tragedy," NICE said in a statement Sunday.

Police said they suspected no criminality in the accident.

The 40-foot bus, which was operating on the N6 line, has been taken offline to be further examined, NICE spokesman Andy Kraus said.

The driver underwent a drug and alcohol test, but results were not yet available Sunday, Kraus said.