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SHELDON — Authorities have identified some of the three people killed in a crash on a New Jersey family's holiday-weekend road trip to Niagara Falls

The Wyoming County Sheriff's Office said Monday the two women killed in Sunday's wreck in Sheldon were 47-year-old Ondina Castro De La Cruz and 32-year-old Mayelin Brito-Castro. Both were from the Perth Amboy area.

The crash also killed a 4-year-old, whose name hasn't been released. Six other relatives were injured, including four children.

The sheriff's office says the minivan didn't have child or booster seats.

Investigators believe the pickup driver ran a stop sign and hit the minivan.

Pickup driver Richard Sawicki was arrested on charges including aggravated vehicular homicide and DWI.

Relative Patricia Plandowski tells WIVB-TV the 20-year-old Sawicki hasn't been in trouble before.