(Omaha, NE.) – Officials with the Omaha Police Department say a man from Iowa died early Sunday morning, when the motorcycle he was riding crashed into another motorcycle being operated by his brother. The accident at Missouri Avenue and L Street in Omaha happened at around 12:54-a.m., Sunday.

Authorities say a 2007 Harley Davidson motorcycle was eastbound on L St., followed by a 2005 Harley Davidson.  The second motorcycle, operated by 22-year-old Riley Denisse, of Neola (IA), struck the rear of the cycle operated 25-year-old Austin Denisse, of LaVista, NE.  Police say the men are brothers.

The force of the crash caused Riley Denisse’ cycle to go over a curb and flip over a guardrail. Riley was thrown from his motorcycle. The cycle operated by Austin Denisse went out of control following the impact, and slid.  Both riders were transported to the hospital by Omaha Fire Department Medics. Riley Denisse died from his injuries at the hospital. Austin Denisse suffered a leg fracture that was not considered to be lift threatening.

The crash remains under investigation.