The U.S. dollar gained as much as 5.5 percent against the Turkish lira after a group within Turkey's military apparently attempted to overthrow the government on Friday.
The dollar was last up 4.72 percent against the lira.
The apparent incidents immediately piqued interest across the world, as Prime Minister Binali Yildirim said a group within Turkey's military had attempted to overthrow the government and security forces had been called in to "do what is necessary."
The lira also plummeted against the euro, trading as much as 5 percent lower in afternoon trade. The euro hit a low of $1.1021 against the dollar.
Earlier, the greenback rose to a three-week high against the yen and was set for its biggest weekly gain against the Japanese currency in 17 years after strong U.S. and Chinese economic data diminished the appetite for the yen as a haven from risk.
The dollar rose to 106.30 yen, its strongest level since June 24, in Asian trade. It had retreated from those gains before a strong report on U.S. retail sales sent it back toward session highs.
U.S. retail sales rose 0.6 percent in June, strongly outpacing the 0.1 percent rise expected by economists. It was the third straight monthly increase and lifted sales 2.7 percent from a year ago.