(AP) — Authorities are trying to determine what caused the motorcycle accident that killed a 29-year-old Norfolk man.

Brandon Blum died Monday night after the collision around 8 p.m.

Norfolk Police Capt. Michael Bauer says Blum was driving his motorcycle east on Omaha Avenue when a car began to merge into the lane he was in.

Blum drove up on the median and flew off the motorcycle. Bauer says that Blum slid underneath an oncoming 1997 Chevrolet Suburban and his motorcycle struck the SUV.

Blum died at the scene of the accident.

The SUV was driven by 18-year-old Humberto Costilla of O’Neill.