"Survivor: Redemption Island” contestant Ralph Kiser has passed away.

His brother Gilbert said he passed away on Wednesday morning of a heart attack.

Ralph was 44 when he appeared on season 22 of “Survivor.”

He passed away when he was 56 years old.

The news was shared on Facebook by Michael Allbright.

Allbright is highly involved in the online “Survivor” community.

Allbright said that Gilbert messaged him to let the “Survivor” community know.

“It was really fun to meet Ralph and his family at the Redemption Island finale,” Allbright recalled.

He added, “If you have fond memories of Ralph please post them.”