Asia markets were broadly lower, with Japanese shares leading losses and the Australian benchmark index slipping to a four-month low, as investors flocked to safe-haven assets amid worries about the U.S. election.
The most recent market jitters over the race to the White House started in earnest a week ago, after the Federal Bureau of Investigation (FBI) said it was investigating new emails related to Democratic nominee Hillary Clinton's use of a private server when she was secretary of state.
Following news about the FBI's investigations, some polls showed the presidential race in battleground states was tight, with Republican nominee Donald Trump appearing to gain some ground.
Japan's Nikkei 225 closed down 229.32 points, or 1.34 percent, at 16,905.36, while the Topix index fell 21.4 points, or 1.56 percent, to 1,347.04, with shares coming under pressure from a stronger yen.
The yen, which is considered a safe haven asset, strengthened against the dollar to trade as high as 102.81 on Friday in Asia, climbing from levels above 104 reached earlier this week. As of 2:04 p.m. HK/SIN, the dollar/yen traded at 103.21.
Across the Korean Strait, the Kospi closed down 1.78 points, or 0.09 percent, at 1,982.02.