UPDATE:

Billy Graham's son-in-law Danny Lotz has passed away.

Anne Graham Lotz posted to Facebook Wednesday that her husband has "moved to our Father's House."

Lotz was found unconscious in his swimming pool and was taken to intensive care.

Lotz, 78, who was married to Billy Graham's daughter Anne, was reportedly treated by the side of the swimming pool at his home in Raleigh, North Carolina. Emergency reponders were able to restart his heart and had transported him to the hospital.

Lotz was discovered unresponsive at 3.45 p.m. Monday afternoon. Anne Graham called 911 after finding him face-down in the water. "He's in the water. He's huge. I can't get him out. I'm just trying to hold his head above water," she said.

Yesterday Anne Graham Lotz posted on Facebook: "He is currently in a hospital ICU receiving excellent care. There are no answers yet as to the outcome. The family is standing firm in faith, trusting Jesus. Thank you for your prayers."

Lotz reportedly suffered from chronic health issues, including seizures due to diabetes. It is not yet known why he collapsed, or whether his existing health problems contributed to the collapse.

Danny and Anne Lotz have three grown children. They have been married for 49 years.