The euro fell to three-week low against the dollar on Friday, with investors wary given strong rhetoric from European Central Bank officials about its recent strength and awaiting German inflation data that could undermine it further.
The dollar edged higher against the euro and the yen after upbeat U.S. economic data.
The euro fell on Wednesday, with investors wary after European Central Bank officials ramped up efforts to talk down the currency, with arguably its most hawkish member hinting at a radical softening of monetary policy.
Sterling firmed against a weaker euro on Tuesday after European monetary policy makers signaled possible monetary easing to avoid deflation.
The euro was hurt by signs that growth was slowing in the euro zone's largest economy, Germany.
Data showing a record euro zone trade surplus in January helped the euro rise against the dollar for the first time in three days.
The dollar steadied against major currencies on Thursday after being jerked higher overnight by a Federal Reserve message that a rate hike would be sooner than expected.
The dollar rose against the yen and euro on Wednesday, following the Federal Reserve's announcement it will further unwind monetary stimulus.
A modest easing of tension in Ukraine and a slight increase in U.S. Treasury yields sent the euro on Tuesday against the U.S. dollar and the yen.
The yen heads for its biggest weekly gain in more than a month against the dollar, on tensions in Ukraine and the Chinese economy.
Fears the crisis in Ukraine could intensify led traders to the safe havens of the Japanese yen and Swiss franc.
Concerns about China and other developing economies weakened the Australian dollar and currencies closely linked to commodities markets.
The ECB's forward guidance may adjust policy to tighten the slack in the Euro zone economy, a senior ECB official said.
Chris Walker, FX strategist at Barclays, discusses how a "high degree of uncertainty" around the Bank of England's monetary policy could have an effect on sterling.
The U.S. dollar was supported by hopes U.S. job growth would pick up in the wake of last week's data.
Unexpectedly strong non-farm payroll data boosted the dollar, despite the cold winter across much of the United States.
The euro added half a cent after the European Central Bank left interest rates unchanged.
Daragh Maher, FX strategist at HSBC, and Stephanie Flanders, chief market strategist for the U.K. and Europe at J.P. Morgan Asset Management, discuss the potential stumbling blocks for sterling's rally.
The yen extended its losses against the dollar and euro as concerns over the standoff between Russia and Ukraine eased somewhat.
The dollar, ruble and euro rose against the yen on Tuesday, helped by signs Russia may want to avoid more military action in Ukraine.