PETALING JAYA: Pakatan Harapan de facto leader Datuk Seri Anwar Ibrahim has been admitted to the coronary care unit at the Kuala Lumpur Hospital (HKL) early Monday (March 5).

Anwar was admitted to the hospital at 1am after suffering a negative reaction to a steroid injection to his right shoulder.

PKR communications director Fahmi Fadzil said the steroid injection was administered to Anwar last Saturday as he was suffering from prolonged pain from the surgery on his right shoulder several months ago.

Fahmid said Anwar's heart rate is low and alarming, but his situation is stable.

"We will release updates on Anwar's health from time to time," he said in a statement.

"We ask everyone to pray for Anwar's safety and health," he added.