The office of Polish Prime Minister Donald Tusk says he has been hospitalized with an acute infection of the respiratory duct, AP reports.

The office said Thursday, Jan 24, via Twitter that Tusk will however be temporarily discharged from the hospital on Friday to attend a voting session in Parliament.

The 55-year-old Tusk is Poland’s longest serving premier, at the helm of the center-liberal government since 2007. He was re-elected for a second term in 2011.