Iraqi President Jalal Talabani has been hospitalised in Baghdad due to a "health emergency," his office said on Tuesday.
"Due to fatigue and tiredness, (Talabani) had a health emergency and was transported... to the hospital in Baghdad" on Monday night, the presidency's website said, without providing further details about his condition.
Iraqiya state television reported that Talabani had suffered a stroke, and said a medical team was working to stabilise his condition.
Talabani has struggled with various health problems in recent years.
He underwent successful heart surgery in the United States in August 2008, and a year earlier had to be evacuated to neighbouring Jordan to be treated for dehydration and exhaustion.
He has also travelled to to the United States and Europe for treatment for a variety of ailments.