Beachgoers formed a human chain over the weekend to help save swimmers struggling from hazardous conditions in Lake Michigan.

According to Fox59, officers with the Grand Haven Department of Public Safety organized about 40 bystanders into a human chain, and they were able to locate a man, who had gone under the water, before police arrived. Paramedics performed CPR on the man, and he was transported to the hospital. But unfortunately, he didn’t survive. The man was identified as 64-year-old David Knaffle of Wyoming, Michigan.

Later in the afternoon, they had to once again form a human chain to save four more swimmers who were struggling. Three of the swimmers survived while a fourth passed away. He was a 20 year old from Lansing.

The beach was later closed due to rip currents and 3-5 foot waves.