WARREN, Ohio (AP) — Investigators spent Monday trying to piece together why eight teenagers were crammed into a speeding SUV without the owner's permission when it flipped over into a pond, killing six of them.

Authorities gave no details on where the group of friends had been and why they were out around daybreak Sunday.

While the father of one of the dead said they were coming home from a sleepover at a friend's house, the mother of another boy killed said that her son and his best friend had lied about staying over at each other's homes that evening. She said she thinks they went to a party.