It was something a little bit serious (or maybe a lot more serions, we don't really know).

Just a few more days in the hospital

On Sunday (4 July), the Prime Minister's Office (PMO) released an update about the condition of PM Muhyiddin.

According to a statement cited by The Star Online, Muhyiddin is still receiving treatment at the hospital for an infection to his digestive system.

The PMO also rubbished claims that it was a recurrence of a tumour.

"The Prime Minister was warded on June 30 and is still receiving treatment for an infection to his digestive system. After an intensive health check-up, there is no proof that there is a recurrence of his old tumour," the PMO said in the statement.

Muhyiddin's doctors have confirmed that he needs intravenous antibiotics, but he'll be able to go home in a couple of days' time.

"On the advice of doctors, he is now still hospitalised to continue receiving intravenous antibiotics. He is expected to be discharged in a few days' time," the statement read.

Currently, Muhyiddin is recovering well and is in a stable condition, and is allowed to continue with his duties while receiving treatment.