The Swiss franc eased against the dollar in early trade on Tuesday as the greenback was buoyed by strong US economic data, recovering from Monday's losses suffered on the back of security warnings in the United States.
The dollar had eased about a percent against the franc on Monday after warnings of possible al Qaeda attacks sparked investors to move their cash to the safe-haven franc.
But it regained its footing later in the session after US data showed the manufacturing sector remained healthy in July.
The dollar rose to 1.2800/04 francs compared to levels around 1.2780 late on Monday in Europe. The euro traded at 1.5370/74 francs compared with levels around 1.5376 francs.
Players in the Swiss market were looking ahead to consumer price inflation data for July due on Tuesday - expected to show that inflation is not an issue in Switzerland despite robust growth.
But economists said Swiss data should have little influence on the exchange rate for now.