DR Congo's top court on Sunday declared opposition leader Felix Tshisekedi the winner of disputed presidential elections after throwing out a legal challenge by the runner-up.

The Democratic Republic of Congo - the world's leading producer of cobalt, used to power mobile phones and electric cars - holds landmark elections in most of the country on Sunday.

More than 20 years after the fall of the charismatic Congolese dictator Mobutu Sese Seko, who ruled the vast African country with an iron fist from 1965 to 1997, many Congolese look back fondly on the era of "Papa Marshal", as he was nicknamed. Our reporters went to DR Congo to explore the legacy of the longtime strongman.

The ruling came amid rising tensions over the government's failure to set a date for the country's next elections, originally due in November this year before Kabila's mandate ends.