

Rescuers in Port-au-Prince on Wednesday look under rubble and speak to a trapped survivor at the site of a four-story building collapse caused by the 7.0-magnitude earthquake that struck Haiti on Tuesday. Gerald Herbert/AP
Rescue dog Duncan peers between the legs of his handler, Peruvian firefighter Gustavo Villavisencio, as they prepare to depart for Haiti to help with relief efforts. Karel Navarro/AP
A senior military officer from the Chinese People's Liberation Army speaks to members of China's International Search and Rescue Team during a departure ceremony in Beijing on Jan. 13. A 50-member Chinese rescue team departed for Haiti on Wednesday. Jason Lee/Reuters
A British search and rescue team organized by the Department for International Development (DFID) wait to fly to Haiti on Jan. 13 after Gatwick Airport was closed due to heavy snowfall. Reuters
A Spanish firefighter gives water to a rescue dog before leaving for Haiti on Wednesday. Firefighters Without Borders, the International Red Cross and other aid groups say they are preparing for major disaster relief in Haiti after a powerful earthquake hit the capital on Tuesday. Paul White/AP
Rescuers work to free trapped survivors and victims in a four-story building that collapsed in the Haitian earthquake. Gerald Herbert/AP
US military personnel prepare goods for relief in Haiti at the Homestead Air Reserve Base in Homestead, Fla., on Jan. 13. Alan Diaz/AP
SH-60 SeaHawk helicopters assigned to Anti-Submarine Squadron 7 depart a Naval Air Station in Jacksonville, Fla., on Jan. 13 to embark aboard the aircraft carrier USS Carl Vinson en route to Haiti. The squadron and several Navy vessels are apart of the humanitarian assistance effort in Haiti. Gary B. Granger Jr./US Navy/Reuters
Los Angeles County Fire Department urban search and rescue teams load equipment to travel to Haiti on Tuesday. Gus Ruelas/Reuters
A Red Cross worker loads humanitarian aid boxes to be sent to Haiti at the Red Cross Center in Toluca, Mexico, on Wednesday. Eliana Aponte/Reuters
Members of the China International Search and Rescue Team depart for Haiti during a ceremony held in Beijing on Wednesday. AP
Members of French Civil Security rescue team who are based in Brignolles prepare to depart for Haiti with trained sniffer dogs. Jean-Paul Pelissier/Reuters
United States Agency for International Development (USAID) search and rescue officials board a plane to Haiti on Wednesday at Washington Dulles International Airport in Chantilly, Va., on Wednesday. Alex Brandon/AP
Members of Nicaragua's Civil Defense load a plane with boxes of humanitarian aid bound for Haiti in Managua, Nicaragua, on Thursday. Some 31 members of the Humanitarian and Rescue Brigade of the Army of Nicaragua left for Haiti to deliver relief to earthquake victims. Oswaldo Rivas/Reuters
Boxes of emergency first aid kits are collected in Toenisvorst, Germany by an employee of the Action Medeor Air Organization to be sent to earthquake victims in Haiti. Frank Augstein/AP
French rescue workers prepare to depart from Roissy Airport in Paris to provide assistance to earthquake-devastated Haiti on Wednesday. International Red Cross spokesman Paul Conneally said a third of Haiti's 9 million people may need emergency aid and that it would take a day or two for a clear picture of the damage to emerge. Michel Euler/AP
Venezuela's Interior and Justice Minister Tareck El Aissami (c.) talks to the media before a Venezuelan Army plane departs from Simon Bolivar airport in Caracas on Wednesday en route to Haiti to provide humanitarian assistance. Carlos Garcia Rawlins/Reuters
Jasmine Segura of the Los Angeles County Fire Department Urban Search and Rescue Team gets a kiss from her cadaver dog, Cadillac, as they prepare to depart for Haiti on Tuesday to help with rescue efforts. Gus Ruelas/Reuters