"Duck Dynasty" star Phil Robertson has died at the age of 79, his family announced on Sunday.The TV personality's daughter-in-law Korie Robertson announced the news on Instagram. Robertson had previously battled Alzheimer's disease."We celebrate today that our father, husband, and grandfather, Phil Robertson, is now with the Lord," the post read."He reminded us often of the words of Paul, you do not grieve like those who have no hope. For we believe that Jesus died and rose again, and so we believe that God will bring with Jesus those who have fallen asleep in him."The post added, "Thank you for the love and prayers of so many whose lives have been impacted by his life saved by grace, his bold faith, and by his desire to tell everyone who would listen the Good News of Jesus. We are grateful for his life on earth and will continue the legacy of love for God and love for others until we see him again."Korie Robertson said a public celebration of life would be announced at a later date.This is a breaking story. Please check back for more details.