No motive has been identified for the attacks, though northern Honduras has been the site of ongoing agrarian conflict for years.
Juan Orlando Hernández was controversially pardoned by Trump in December while serving a 45-year prison sentence in the US for drug trafficking.
Juan Orlando Hernández was serving a 45-year prison sentence for drug trafficking when he was pardoned by Trump.
There's been a surge in remittances going back to Honduras amid Trump's immigration crackdown.
His rival Salvador Nasralla says he will not accept the result, but urges his supporters to remain calm.
Second-placed candidate Salvador Nasralla alleges fraud as the vote count drags into a ninth day.
Vote counting in the presidential election is going into its fourth day with the two top candidates neck and neck.
Former vice-president Salvador Nasralla has a small lead over his rival, the conservative former mayor of Tegucigalpa, Nasry Asfura.
Juan Orlando Hernández, once called the key figure in a drug trafficking scheme that flooded America with cocaine, walked free after the pardon.