Investigators say the driver of the school bus that collided with a truck at a New Jersey intersection reported he pulled ahead of the roadway stop line to get a clear view -- and never saw the truck coming.

The National Transportation Safety Board said Friday that 66-year-old John Tieman had been a school bus driver for just three weeks when the accident occurred Feb. 16 in Chesterfield. And the NTSB said it found the truck, hauling asphalt, was 5 percent overweight.

But investigator Peter Kotowski says no conclusions have been reached.

Triplet Isabelle Tezsla, a state trooper's daughter, was killed in the crash. Two other 11-year-old students, including one of her sisters, remain in critical condition.

Kotowski says local officials are proactively making safety improvements at the intersection, including adding warning signs.

(Copyright 2012 by The Associated Press. All Rights Reserved.)

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