One girl is dead and her two sisters - along with another boy - are in critical condition after their school bus was hit by a dump truck on Thursday morning in Burlington County, New Jersey. The girl who died has been identified as 11-year-old Isabelle Tezsla. Her sisters, 11-year-old Sophie Tezsla and 11-year-old Natalie Tezsla, were injured and last reported to be in critical condition. The three girls are triplets and the daughters of New Jersey State Police Trooper Anthony Tezsla. Another child on the bus, 11-year-old Jonathan Zdybel, was also critically injured.