MILWAUKEE (CBS 58) -- A motorcycle crash on the Hoan Bridge left one person dead, according to the Milwaukee County Sheriff’s Office. Deputies responded to the single-vehicle incident on I-794 southbound after witness calls were made to the county’s 911 Dispatch Center.

The crash happened Sunday, June 23 at around 9:17 p.m.

Authorities report the motorcycle was carrying one rider, on whom deputies performed life-saving efforts, which were continued by Milwaukee Fire Department responders. The rider was pronounced dead shortly before 10 p.m.

The incident remains under investigation, and no further details have yet been released regarding the rider’s identity or potential cause of the crash.