Two separate water-related incidents in the United States over the weekend resulted in the deaths of 10 people, including a fire captain and his three sons in a Utah canyon and five adults who drowned in an Ohio river while trying to save a struggling swimmer. The events, unfolding within days of each other, prompted local authorities to issue renewed warnings about the dangers of sudden flooding and the risks of untrained water rescues.

In southern Utah, the bodies of five family members were recovered from a flash flood near Sunglow Campground, a red rock canyon area near Bicknell, according to the Wayne County Sheriff’s Office. The victims were identified by the Provo Fire Department and a family friend’s GoFundMe page as Captain Spencer Long, his wife Katrina, and their three sons, Reid, Thayne and Gage. A daughter, Lydia, survived because she did not join the excursion. The sheriff’s office stated the family was hiking on Friday when heavy rains caused the flooding. The first body, that of a young male, was discovered late Friday night; the remaining four were recovered later that night and into Saturday.

In Ohio, a group of seven people — two couples, an adult male friend and two children under 10 — were gathered along the Scioto River at the O’Shaughnessy Reservoir, about 10 miles northwest of Columbus, on Sunday evening. Delaware County Sheriff Jeffrey Balzer told reporters that one adult entered the water to swim and began struggling. Two other adults then entered to help, followed by two more, before all five disappeared. The two women were pulled from the water and pronounced dead at a local hospital; the bodies of the three men were recovered the following day. The surviving children were placed in the care of family services. Authorities have not released the victims’ identities, and the sheriff said it was unclear whether alcohol was a factor.

Sheriff Balzer noted that such chain-reaction drownings are not uncommon when untrained individuals attempt rescues. He urged the public to keep safety devices such as life vests nearby when near bodies of water. Investigations into both incidents are ongoing, and no further details have been released by officials in either state.