NICOSIA, Cyprus — Cyprus heads into a runoff presidential election next weekend, with voters called on to select who will lead the country through a severe financial crisis after no candidate won an outright majority on Sunday.

Nicos Anastasiades, a right-winger who presented himself as the most capable to negotiate a bailout with Cyprus’ European partners and who went into the election a strong favorite, won the first round with just over 45 percent of the vote. But he fell short of the 50 percent plus one vote needed for an outright victory.