Authorities in Snohomish County said a 13-year-old boy drowned and two other teen boys were in critical condition after they were found in the water of Lake Stevens around the same time that crews in Renton were called to a scene at Ron Regis Park when six people needed help to get out of fast moving, chilly waters.

A spokesperson for the Lake Stevens Police Department said they were called about 5:45 p.m. when three boys were found unresponsive in the water at Davies Beach.

Police posted on social media that the 13-year-old boy died after being rushed to a local hospital while a 12-year-old boy and 15-year-old boy were listed in critical condition after being rescued. Authorities had originally said a 43-year-old woman and two children were found in the water.

Officials closed the park while crews investigated the incident.

Around the same time, first responders in King County were called to Ron Regis Park in Renton for a water rescue.

According to a social media post, a bystander helped two people get ashore while three others were able to make it out of the river on their own. King County firefighters had to rescue one person from the water.

The search for a swimmer who went missing Saturday in the Green River Gorge remained unresolved Sunday evening.

According to the Puget Sound Fire Department, a call for help was made at 1:30 p.m. Saturday by someone reporting that a 20-year-old man experiencing distress in the water.

First responders used kayaks, a law enforcement drone and the King County Sheriff's Office 's helicopter in the search for the victim but was unable to locate them, authorities said.

Officials warned that despite temperatures in the upper 80s and lower 90s, area waterways are much colder with near-freezing temperatures that can be difficult to navigate for swimmers.