NEW YORK — A New York City mother wants to know why her first-grade son was left to wander the streets alone after being dropped off by a school bus driver at the end of the line.

School officials say they don’t know who put 5-year-old Jaeden Vasquez on the bus Thursday — especially since he wasn’t even supposed to be on it. He lives across the street from the school in the Bronx.

His mother, Aileen Bonilla (Bow-NEE’-yah), says the school apologized but that isn’t enough.

Five-year-old children aren’t supposed to be let off school buses unless an adult is waiting. Jaeden says he was ordered off the bus at the last stop, two miles from his home. A stranger brought him home.

School officials say they are investigating.