Peru’s Keiko Fujimori looked set to face a run-off against a conservative rival after a troubled first-round presidential election on Sunday marred by logistics foul-ups, police raids and allegations of fraud.

First counts and exit polls showed the 50-year-old daughter of disgraced former president Alberto Fujimori ahead in the 35-candidate race, but she was well short of the 50 per cent needed to win outright.

Her nearest rival was far-right Rafael “Porky” Lopez Aliaga – who has vowed to “hunt” Venezuelan migrants and likens himself to a cartoon pig – although he was in a tight race for a run-off spot in June with millions of votes still to count.

Peruvians had hoped Sunday’s election would end the political chaos that has brought eight presidents in a decade and a surge in violent crime.

But election day saw yet more tumult, with missing election materials preventing 100 polling centres from opening on time.