An American Red Cross worker helps a man wounded in the earthquake in Port-au-Prince January 15, 2010. Tensions rose among desperate Haitians awaiting international aid and hunting for missing relatives as aid began to trickle in four days after an earthquake that authorities say killed 200,000 people.

The hospital ship USS Comfort departed Baltimore January 16, 2010 en route to Haiti as part of the United States' relief effort for the earthquake-stricken nation.

An U.S. Red Cross worker helps a baby wounded in the earthquake in Port-au-Prince January 15, 2010.