Asian stocks dropped, with the regional benchmark index heading for its lowest close in more than three months, as political tension in Greece heightened concern Europe’s debt crisis may worsen, weakening the outlook for exporters in Asia.

Nikkei 225 9,045.06 -136.59 -1.49%

Hang Seng 20,321.64 -163.11 -0.80%

S&P/ASX 200 4,275.1 -39.25 -0.91%

Shanghai Composite 2,408.59 -40.30 -1.65%

Mitsubishi Motors Corp., an automaker that gets 27 percent of its sales from Europe, dropped 2.3 percent in Tokyo.

Qantas Airways Ltd., Australia’s largest carrier, slid 2.3 percent in Sydney after the government boosted imposts on airfares and scrapped a planned corporate tax cut to end four years of budget deficits.

Cosco Corp. Singapore Ltd. fell 3.5 percent after the shipbuilding unit of China’s biggest shipping company posted first-quarter earnings that missed analysts’ estimates.