The prime minister handed his resignation to President Felix Tshisekedi eight days after the validation of his mandate as a national deputy.
Lukonde will now join parliament as a member of the assembly.
He was appointed prime minister of the mineral-rich central African country in February 2021, at age 43.
After he was re-elected in December, Tshisekedi named a representative to identify a majority coalition within the National Assembly in view of forming his next government.
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