Czech President Milos Zeman has been hospitalized after a surprise opposition win in parliamentary elections.
The 77-year-old is a heavy smoker and former heavy drinker who uses a wheelchair and suffers from diabetes.
He was due to lead talks on forming a new government after Saturday’s vote.
Prague’s Central Military Hospital director said Mr Zeman was in intensive care for complications from a known condition.
Mr Zeman’s office has previously said he is suffering from exhaustion and dehydration despite spending eight days in hospital last month.