Randy Travis is in a "critical condition" after suffering a stroke.
The 54-year-old country singer underwent surgery to relieve pressure on his brain last night (10.07.13) after suffering the attack as a "complication of his congestive heart failure", for which he was initially hospitalised on Sunday (07.07.13) at Baylor Medical Center at McKinney, Texas.
The 'My Greatest Fear' hitmaker's publicist Kirt Webster said: "He is in critical condition.
"We will have updates as they become available. His family and friends here with him at the hospital request your prayers and support."
These comments came just hours after doctors said Randy had "stabilised and he has shown signs of improvement."
Randy, who was initially suffering from cardiomyopathy - which weakens and enlarges the heart and can lead to heart failure - and congestive heart failure when he was admitted on Sunday, was transferred to The Heart Hospital at Baylor Plano in Texas on Monday (08.07.13) to receive a "higher level of specialised care".
Dr. Michael Mack said: "We determined together in a joint decision that a higher level of specialised care was appropriate, and therefore we transferred him to The Heart Hospital."
Randy then had a device fitted in his heart to help his blood flow.
Kirt said in a written statement: "[Randy] underwent the placement of an Impella peripheral left ventricular assist device for stabilization prior to transferring hospitals."
Randy appeared to be well in business meetings on Friday (05.07.13) and Saturday (06.07.13) but Kirt revealed "on Sunday it hit him".