Sri Lanka Prime Minister Dinesh Gunawardena addresses an election campaign rally in support of independent presidential candidate Ranil Wickremesinghe ahead of the presidential election, in Minuwangoda, Gampaha district, Sri Lanka, 17 September 2024; Credit: Reuters/Thilina Kaluthotage/ File Photo

COLOMBO (Reuters) - Sri Lankan Prime Minister Dinesh Gunawardena has resigned, he said on Monday 23 September 2024, a day after Marxist-leaning Anura Kumara Dissanayake won a presidential election in the debt-ridden Indian Ocean nation.

Gunawardena, 75, took over as prime minister in July 2022 after former President Gotabaya Rajapaksa fled the country and resigned in the face of widespread protests unleashed by the worst economic crisis in decades.

Sunday's election saw Dissanayake defeat incumbent Ranil Wickremesinghe, who had been appointed by parliament to serve out Rajapaksa's remaining term.

"I respectfully inform you that I hereby resign as the prime minister," Gunawardena said in a post on X, thanking Wickremesinghe for support extended during his tenure.

Media said Gunawardena had already sent his resignation to President-elect Dissanayake.