Country stars react to the tragic death of Granger Smith's 3-year-old son

Country music star, Granger Smith, shared the tragic news about the death of his 3-year-old son, River Kelly, on Instagram.

Heartfelt messages came flooding in on Smith's social media from fellow musicians and fans on Thursday showing their support and sorrow over the heartbreaking Instagram post.

"I can't imagine what ya'll are going thru. Praying for u and ur family brother. We are heartbroken for u guys," Jason Aldean commented. "Dancing With The Stars" alum Bobby Bones took to Twitter writing, "Thinking about you @GrangerSmith. love you man. so sorry to hear what you are going through. my listeners feel the same. lots and lots of love coming from us."

Other stars who expressed their sadness included Maren Morris and Danielle Bradbery. See how celebrities reacted in the gallery below:

Smith and his wife, Amber Emily, posted the following message on Instagram:

"I have to deliver unthinkable news. 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.

"In lieu of flowers or gifts, please send donations to Dell Children’s Medical Center in River’s name. The doctors, nurses and staff have been incredible."