Turkey's presidential election could be heading for a run-off, as state-run news agency AA reported that incumbent Recep Tayyip Erdogan has dipped below the 50 percent needed to secure another term.
That was just below a five-week high of 102.75 touched earlier in the session. Analysts have said many factors could be behind the dollar's recent strength, including concerns about U.S. inflation, and fears about the debt ceiling standoff and global economic growth driving safe-haven buying.