So heartbreaking.

Real Housewives of Atlanta alum Kim Zolciak revealed on Sunday, April 23 that her four-year-old son Kash Biermann was involved in a terrifying attack by a dog! The little boy survived the ordeal but he had to be rushed to the emergency room where he’s been hospitalized since yesterday. She shared the sad details in an Instagram message to her fans.

“I don't know where to start. The last 14 [hours] of our lives has been a living nightmare,” the 38-year-old wrote. “My sweet [Kash] was bit by a dog and had very traumatic injuries. I've never prayed so hard, or been so scared in my life.”

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I don't know where to start. The last 14hrs of our lives has been a living nightmare. My sweet @kashbiermann was bit by a dog and had very traumatic injuries. I've never prayed so hard, or been so scared in my life. My husband, our daughters, Kj, Tracey, his nanny, Michael Beck and everyone close to us all pulled together and held each other up. Kash was in the operating room for a couple hours and now we are praying for a quick speedy recovery. Due to this I will not be on WWHL tonight but will do my best to make it up very soon! Thank you for all your prayers and most importantly Thank you God for your protection ❤️ A very special Thank you to my incredible medical team! A few days in the hospital and we will be back home ❤️

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In the photo, her toddler laid in a hospital bed with what looked like bandages on his face. Kim’s husband, former NFL star Kroy Biermann, hunched over the side with his hand on their son’s head.

“Kash was in the operating room for a couple hours and now we are praying for a quick speedy recovery,” the Don't Be Tardy star continued. “Due to this I will not be on [Watch What Happens Live] tonight but will do my best to make it up very soon! Thank you for all your prayers and most importantly Thank you God for your protection. A very special Thank you to my incredible medical team! A few days in the hospital and we will be back home.”

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Fans flooded Kim’s comments with prayers and some of them even shared their own experiences as mothers who have gone through similar situations with their children. It is unclear if Kash was attacked by one of the family’s dogs or a stray.

Just one day before the horrible incident, Kim shared a photo of the adorable tot sipping on a smoothie, enjoying a pool day with his siblings. Together, Kim and Kroy share four children — five-year-old Kroy, Kash, and three-year-old twins Kaia and Kane. Kim also has two daughters from a previous relationship, 20-year-old Brielle, and 15-year-old Ariana Biermann.

Scroll through the gallery below to more photos of Kim’s adorable kids.