Polls opened nationwide in Greece's general election on Sunday, with the leftist Syriza party seeking to return to power in a neck-and-neck race against conservative New Democracy and a gauntlet of tough economic reforms looming.

Over 9.8 million Greeks were registered to vote in an election that will select a new government to implement a three-year bailout adopted by the country's parliament last month. The divisive decision led to the toppling of the government of radical prime minister Alexis Tsipras.