A desperate search is underway in Oregon after authorities said a group of six people were swept over a waterfall on Saturday, leaving one dead, three hospitalized and two missing.

Search and rescuers responded just before 3 p.m. to the Dillon Falls on the Deschutes River west of Bend after getting a 911 call about the group going over the falls, the Deschutes County Sheriff’s Office said.

One person was confirmed dead at the scene. Three others were pulled from the river and rushed to a local hospital. No update on their conditions was immediately provided. 

Two people remain missing as a multi-agency search and rescue operation is underway to find them, according to the sheriff’s office.

The sheriff’s office said Bend Fire and Rescue and the Bend Police Department also responded to help on Saturday, with the latter providing drone support for aerial searches.

Search and rescuers recovered the body of one individual and pulled three others from the water on Saturday. No update on the conditions of the three survivors was immediately available. (Deschutes County Sheriff’s Office )

The operation paused Saturday night and resumed Sunday morning using drones, marine patrol boats and three K-9 units. A 15-member swift water rescue team scoured all high-interest areas that drone imagery flagged, according to the sheriff’s office.

A 15-member swift water rescue team has been scouring the area for the two missing people. (Deschutes County Sheriff’s Office )

Despite the effort, neither missing person was found Sunday. The search was set to resume Monday morning, officials said.

It was unclear what activity the group was doing before they were swept over the waterfall.

The names of the victims and survivors were withheld until families were notified.