Thailand's ailing King Bhumibol Adulyadej, the world's longest-reigning monarch, has been treated for lung inflammation and blood infection, the Royal Household Bureau said in a statement Sunday.
An X-ray scan and lab tests conducted on the 87-year-old king found infection in his blood and inflammation in the lower left lung, the statement said, attributing the illness to "aspirated pneumonitis."
On Saturday, the king developed high fever and his concentration of blood oxygen was found to be lower than normal. His heart rate slightly increased.
Besides physical therapy, the king was given antibiotics and oxygen supplement. Nutrition was given through a vein, the statement said.
"Currently, the king still has fever. His blood pressure is in normal range. He is able to drink some water," the statement said.
The king, who is deeply revered by the Thai people, has been hospitalized since May 31 for multiple illnesses.
He has been in and out of the hospital since 2009.