The dollar rose against the euro and the yen as the war in Afghanistan appeared to turn in favor of forces opposed to the ruling Taliban.
The greenback rose as high as 87.92 cents per euro from 89.36 Monday. The dollar traded at 121.48 yen, up from 120.53 in the prior session. The U.S. currency was also helped by the growing belief that terrorism had nothing to do with the plane crash near a New York airport Monday.
The British pound fell as low as $1.4435, down from $1.4552. The euro traded for 107.11 yen.
In the latest development in Afghanistan, the Northern Alliance entered Kabul, essentially capturing the capital city while encountering little resistance from Taliban fighters.