Three New Jersey schoolchildren remain hospitalized with serious injuries in the aftermath of a bus crash that killed a state trooper's 11-year-old daughter.

A spokeswoman for Cooper University Hospital in Camden says 11-year-olds Sophie and Natalie Tezsla and Jonathan Zdybel, also 11, remain in critical condition. Officials say 15 students in all were injured in yesterday's crash.

The crash killed Sophie and Natalie's triplet sister, Isabelle. All were students at Chesterfield Elementary School.

Police are investigating the accident that involved the bus and a dump truck. No charges had been filed as of late last night.

NJ trooper's triplets in bus crash: 1 dead, 2 hurt