Slovak Prime Minister Robert Fico's health condition was on Friday "still very serious" two days after being shot, his deputy and close ally said. 

Deputy Prime Minister Robert Kalinak said that Fico had undergone a second operation. "His state is still very serious. I think it would take a couple of days to see the course of the development of his state," Kalinak told reporters outside the hospital on Friday.

(With input from agencies)