The euro fell Thursday after European Central Bank President Mario Draghi said the bank did not discuss ending bond purchases.
The euro weakened Wednesday, a day before the European Central Bank is due to meet, with investors focused on Mario Draghi.
The dollar was mixed Tuesday as investors took some profits from the greenback's recent strength and evaluated the Fed.
The dollar retreated as investors evaluated whether the Fed will let inflation run above target before raising interest rates.
Funds are expected to flow back into Thailand given the steadily growing economy and solid corporate earnings growth, says CIMB's Kasem Prunratanamala.
The dollar posted a weekly performance best after strong U.S. retail sales and producer prices data for September.
Markets were initially nervous about the succession of the monarchy in Thailand but nerves should ease soon, says Saxo Capital Markets' Tareck Horchani.
The dollar tumbled on Thursday, as risk appetite took a turn for the worse after soft Chinese trade data spooked the market.
Jane Foley, head of FX strategy at Rabobank, discusses the death of Thai King Bhumibol Adulyadej and how this could affect the country's political and economic situation.
CNBC's Martin Soong discusses the death of the world's longest reigning monarch, Thailand's King Bhumibol.
The dollar held gains Wednesday after Fed meeting minutes reinforced expectations that the central bank would hike rates in December.
The dollar hit a high on Tuesday as investors increased bets that the Federal Reserve would raise interest rates in December.
The pound steadied while the peso surged after the damaging publication of a video of Trump making vulgar comments about women.
The sterling tripped lower, while the dollar slipped on news of unexpectedly weak U.S. job growth in September.
The dollar gained against a basket of currencies on Thursday, hitting its strongest level in two months.
The dollar was little changed as upbeat data on U.S. services sector offset a weaker-than-expected report on private job growth.
The sterling stumbled against the dollar on fears over the fallout of Britain's looming exit from the European Union.
Sterling fell against the dollar after a deadline was set for the start of the formal process that will split Britain from the EU.
The euro erased losses against the dollar after hitting a nine-day low on reduced concerns surrounding Deutsche Bank's health.
The U.S. dollar hit an eight-day high against the yen on Thursday on reduced appetite for the safe-haven currency.