Bulgaria's outgoing Prime Minister Boyko Borisov was hospitalised Sunday with severe hypertension for a second time this week, amid a new wave of mass street rallies.
Borisov, 53, was admitted in hospital with "high blood pressure and an overall weakness" and is currently undergoing infusion therapy, hospital chief Lyubomir Spasov said.
"We are monitoring him, his blood pressure is still high but we hope to normalise it," Spasov added.
The former bodyguard and police chief was discharged from the same hospital only on Thursday after spending three days there with his blood pressure at a very high 190/110.
The right-wing premier had tabled his surprise resignation on February 20 amid pressure from sometimes violent protests against poverty and corruption that also saw three men set themselves on fire.
Widespread discontent has continued with tens of thousands joining new protests across the country on Sunday amid deep public unease with politicians in general ahead of early elections on May 12.