Deputies say speed caused a fatal motorcycle accident in East Houston.
It happened at around 11:00 p.m. Tuesday at the River Terrace Park on Market Road.
According to the Houston Police Department, the motorcycle driver was speeding and lost control while turning onto Bayou Drive.
The driver skidded sideways, went off the road and slammed into a guardrail.
Police say he then hit his head on a concrete barrier and rolled down a hill, landing in the bayou.
The driver wasn't wearing a helmet and died at the scene.