The U.S. warned Pakistan that a recently signed gas pipeline deal with Iran could run afoul of new sanctions being finalized in Congress, the U.S. special envoy to Pakistan and Afghanistan said Sunday.

More than two months after Poland's president was killed in a plane crash, Poles voted Sunday to choose his successor. Exit polls showed interim President and Parliament Speaker Bronislaw Komorowski leading former Prime Minister Jaroslaw Kaczynski, but without the 50 percent needed for outright victory.

The United States warned Pakistan that a recently signed gas pipeline deal with Iran could run afoul of new sanctions being finalized in Congress, the U.S. special envoy to Pakistan and Afghanistan said Sunday.

Defense Secretary Robert M. Gates said Sunday the spike in U.S. casualties in Afghanistan was expected and that people are too quick to say the war is going badly.

Two bombs set up in push carts exploded minutes apart Sunday in a provincial capital in southern Afghanistan, part of a series of violent attacks across the country.

The Obama administration has reaffirmed its promise to begin withdrawing troops from Afghanistan by July 2011, distancing itself from recent Pentagon comments that the move could take longer.

White House Chief of Staff Rahm Emanuel on Sunday portrayed Republicans as sympathetic to BP, saying that a House Republican's controversial apology to the oil giant is emblematic of the party's views.

Within the U.S. military's rank and file, there are growing doubts about winning in Afghanistan, a mood that contradicts upbeat war reports delivered to Congress last week by the top commander and officials.

Defense Secretary Robert M. Gates said Sunday that Iran's government is becoming a military dictatorship, with religious leaders being sidelined and, as a result, new sanctions could pressure Tehran into curbing its illegal nuclear program.