James Marape is elected Prime Minister by the National Parliament following the resignation of Peter O'Neill.
Papua New Guinea begins a vaccination campaign against COVID-19 using the Oxford–AstraZeneca vaccine supplied from Australia. Prime Minister James Marape is the first person to receive a dose of the vaccine.
The Supreme Court of Papua New Guinea dismisses a legal challenge against the election of Prime Minister James Marape. The opposition had argued that Marape's election was unconstitutional after the original candidate, Peter O'Neill, withdrew his nomination, paving the way for Marape's election.
Polling places open in Papua New Guinea, and will remain open for two weeks, to elect all 111 members of the National Parliament. The People's National Congress led by Prime Minister Peter O'Neill is considered likely to maintain a governing coalition, despite uncertainty due to lack of opinion polling.
Anti-government protests erupt across Papua New Guinea against Prime Minister Peter O'Neill, calling on him to resign. Papua New Guinea has been in a state of political turmoil since 2014 when the Prime Minister was accused of fraud and corruption.
Police blockade the Parliament of Papua New Guinea in Port Moresby the day after the government led by Prime Minister of Papua New Guinea Peter O'Neill lays sedition charges against the Chief Justice of the Supreme Court of Papua New Guinea, Sir Salamo Injia.
The Supreme Court of Papua New Guinea rules that the August 2011 election of Peter O'Neill as Prime Minister was unconstitutional and orders the reinstatement of former Prime Minister Michael Somare to office.