Turkey election runoff 2023: what you need to know

Women display flags with images of Turkish President Tayyip Erdogan next to an election campaign point, ahead of the May 28 presidential runoff vote, in Istanbul, Turkey May 25, 2023. REUTERS/Murad Sezer

ISTANBUL (Reuters) - Turks were voting on Sunday in a presidential election runoff between the incumbent Tayyip Erdogan and his challenger Kemal Kilicdaroglu that will decide whether the president extends his rule into a third decade.

Here is a guide to the runoff, the two candidates and the key issues as well as details on how the May 14 parliamentary election unfolded: