Alejandro Giammattei will succeed corruption-tainted outgoing President Jimmy Morales, who leaves office in January.
With 19 candidates in the race for president, and the winner needing an absolute majority, a runoff vote is likely in August.
The truck struck a group of people who had gone onto the road to inspect another person who had been earlier hit by a car, Cecilio Chacaj, a spokesman for the local fire department says.
Guatemala President Jimmy Morales announced that he was ending the commission's run in the country, but Guatemala's top court blocked the expulsion.
Ramallah-based Palestinian government slammed the decision saying "it violates the rules of international law" after Guatemala's President Jimmy Morales announced the decision at a pro-Israel lobby conference in Washington.
Alvaro Colom and former finance minister Juan Alberto Fuentes, who is now chairman of Oxfam International, was arrested as part of a probe over vehicles purchases during Colom's administration.
Guatemala was one of nine nations that voted with the US and Israel when the UN General Assembly overwhelmingly adopted a non-binding resolution denouncing US President Trump's recognition of Jerusalem as Israel's capital.
The controversial election results in Honduras threaten to derail the positive developments the country has experienced in recent years.
The move came after President Jimmy Morales announced he was expelling the head of a UN anti-corruption commission that is investigating his campaign's financing.
At least 35 girls died in the blaze at the centre for young people who had been abused and for juvenile offenders. More fatalities are expected as authorities continue to trade blame.
At least 22 teenage girls burned to death in a fire that police claim was arson. Guatemala's president declared three days of national mourning after the incident.
The ship provides medical abortions to women in countries where the procedure is banned.
Subscribe to our Youtube channel for all latest in-depth, on the ground reporting from around the world.
Copyright © 2020 TRT World.