The dollar rose broadly on Monday, with the euro sliding more than half a percent against the U.S currency, on growing concern that Greece may default on debts.
The euro was last off 0.70 percent against the dollar at $1.0730, weighed down by the European Central Bank's bond-buying program and the risk Greece could leave the single currency within months.
Athens is in negotiations with its euro zone partners and the International Monetary Fund over reforms required to unlock remaining bailout funds. Public sector entities in Greece were ordered to transfer idle reserves to the central bank to help with a cash squeeze.
The European Central Bank's vice president, Vitor Constancio, said on Monday that Greece would not necessarily have to leave the euro if it defaults on its debt. Still, ECB officials are concerned about the country's looming 1 billion-euro bill due to the IMF in May.