Asian stocks fell, with a regional benchmark index headed for its biggest loss this year, as Greece’s move to call new elections increased concern the country will decide to leave the euro and derail efforts to contain the region’s debt crisis.

Hong Kong’s Hang Seng Index and Korea’s Kospi index fell more than 3 percent, entering so-called corrections after retreating more than 10 percent from recent highs.

Nikkei 225 8,801.17 -99.57 -1.12%

Hang Seng 19,204.38 -689.93 -3.47%

S&P/ASX 200 4,165.5 -100.78 -2.36%

Shanghai Composite 2,346.19 -28.65 -1.21%

Nissan Motor Co., which depends on Europe for about 16 percent of its sales, slid 2.2 percent in Tokyo.

BHP Billiton Ltd., the world’s largest mining company, declined 4.1 percent in Sydney after metal prices fell.

Toll Holdings Ltd., an Australian trucking company, sank 15 percent after forecasting lower full-year profit.