The country is likely to face a period of uncertainty as HDZ negotiates with smaller parties to form a government.
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Exit polls expected minutes after voting ends at 7pm (17:00 GMT), with official results due in the coming days.
Bus carrying some 40 passengers veered off elevated overpass, plunged about 15 metres and caught fire, officials report.
Dickey, 40, was removed safely from cave following international rescue operation involving more than 150 participants.
