Hundreds of buildings were damaged or looted, including schools and hospitals, in a wave of unrest after Daniel Chapo was confirmed as the winner of the presidential election.

The US called the electoral process "flawed," while the European Union pointed to "irregularities during counting of votes and unjustified alteration of election results."

By Custodio Cossa MAPUTO (Reuters) -At least 21 people have been killed in unrest after Mozambique's top court on Monday confirmed long-ruling party Frelimo's victory in the election, the country's interior minister said late on Tuesday.

Protests have broken out once again in Mozambique after the country's highest court confirmed that the ruling party candidate, Daniel Chapo, won October's disputed presidential election. Deadly protests erupted when the preliminary results were announced at the time.

A ruling on Monday confirming that Daniel Chapo had won a disputed election has sparked protests and violence.

Mozambique's top court on Monday confirmed the ruling party Frelimo's victory in an October election, which has sparked massive protests by opposition groups who say the vote was rigged. The Constitutional Council has the final say over the electoral process and its ruling is likely to spark further protests in Mozambique,

At least 21 people were killed on Tuesday as violence intensified across Mozambique following the validation of the ruling party’s victory in the disputed October election, with rioters looting and torching police stations in the gas-rich southeast African nation.