"We are grieving alongside countless Texans whose lives have been upended by this tragedy," he wrote in a statement on Instagram.

Pat Green's wife Kori Green shared the same statement on her Instagram account, adding in the caption that the singer's younger brother John, along with John's wife Julia and two of their children, were swept away in the floodwaters in Kerrville.

The Texas floods have impacted country singer Pat Green personally as his brother's family remains missing in Kerrville and more than 100 people have died.