Granger Smith‘s 3-year-old son River has died. On Thursday (June 6), the singer shared that there was a tragic incident and despite doctor’s best efforts he and his wife Amber said goodbye this week.

Smith — best know for songs like “If the Boot Fits” and “Backroad Song” and for his alter ego Earl Dibbles Jr. — didn’t share the nature of the accident or offer details about when it happened. “I have to deliver unthinkable news,” he writes. “We’ve lost our youngest son, River Kelly Smith.”

Following a tragic accident, and despite doctor’s best efforts, he was unable to be revived. Amber and I made the decision to say our last goodbyes and donate his organs so that other children will be given a second chance at life. Our family is devastated and heartbroken, but we take solace in knowing he is with his Heavenly Father. Riv was special. Everyone that met him knew that immediately. The joy he brought to our lives cannot be expressed and his light will be forever in our hearts. If there are words to say more, I cannot find them in this moment. Love the ones close to you. There has never been a more difficult moment for us than this.