A series of Ukrainian drones struck a key Russian oil terminal in St Petersburg overnight, as tensions escalate between Moscow and Kiev, while Peru's presidential election results sparked controversy when Keiko Fujimori was declared the winner on Tuesday.

Fujimori, the daughter of disgraced president Alberto Fujimori, won the tight presidential election nearly a month after voting took place, according to official results announced by Peru's electoral authority.

The disputed election has sparked opposition protests and accusations of electoral fraud, with Fujimori's supporters calling for calm and respect for the democratic process.