PORTLAND, Ore. (KOIN) — A 26-year-old woman fell off a walking ramp that connects the dock to a boat in the Columbia River and drowned, the Multnomah County Sheriff’s Office confirmed.

An emergency call was made around 3 a.m. about the incident at the Sundial Marina. Multnomah County marine deputies and Portland Fire & Rescue both arrived and found the woman along the riverbank but unresponsive.

Olivia Payne was pronounced dead at the scene, officials said.

The investigation into the incident continues, but the Multnomah County Sheriff’s Office believes alcohol may have played a role.