The left-wing candidate won a narrow victory in a remote district in the Peruvian Andes, exit polls show.
Robbie Williams gave an impromptu performance outside a hotel in Lima after his stadium concert was cancelled.
The burial site of the ancient pre-Incan Chimu culture was found largely intact.
A magnitude 6.7 earthquake struck the Ayacucho region on Thursday, the US Geological Survey says.
Relations broke down after former Peruvian Prime Minister Betssy Chávez sought asylum in the Mexican embassy in November 2025.
The small plane was flying over the Nazca Lines archaeological site when it crashed, according to local reports.
Ollanta Humala had been convicted of money laundering offences alongside his wife in 2025.
More than 100 protesters gathered during the inauguration of Peru's first elected female leader.
Authorities are investigating the cause of the blaze in Lima as local media report it may have been arson.
