A soldier stands guard as Yemeni defendants convicted of spying for Iran, stand behind bars during their hearing session at a state security court in Sanaa, Yemen. Hani Mohammed/AP
Stella Ferruzola, 3, poses with a Blue Morpho butterfly on her nose at the Sensational Butterflies Exhibition at the Natural History Museum in London. Luke MacGregor/Reuters
Daffodils are covered with wet spring snow in Lancaster, Pa., as a storm stretching from the Midwest to the East Coast is burying thoughts of springtime weather under a blanket of heavy wet snow and slush. Richard HertzlerIntelligencer Journal / Lancaster New Era/AP
A long-tailed macaque pauses at the newly completed River Safari in Singapore. Singapore's latest attraction will showcase 5000 animal specimens representing 300 animal species from freshwater habitats inspired by eight of the world's iconic rivers. Wong Maye-E/AP
Penitents wait before taking part in the procession of 'Santa Genoveva' brotherhood during Holy Week in the Andalusian capital of Seville, southern Spain. Hundreds of Easter processions take place around the clock in Spain during Holy Week, drawing thousands of visitors. Marcelo del Pozo/Reuters
Nkosazana Dlamini Zuma, chairperson of the African Union Commission (AUC), makes her speech at the sixth joint AU/ECA Conference of African Ministers of Finance and Economic Development in Abidjan, Ivory Coast. Thierry Gouegnon/Reuters
The top of a steel pan is pictured beside a furnace at the plant of German steel company Arcelor Mittal in Hamburg, Germany. Fabian Bimmer/Reuters
An Afghan prisoner waits in line for his release from Parwan Detention Facility after the US military gave control of its last detention facility to Afghan authorities in Bagram, outside Kabul, Afghanistan. Anja Niedringhaus/AP
A man paints green the exterior wall of a home in Jalousie, a cinder block shantytown in Petionville, Haiti, March 21. The $1.4 million effort titled 'Beauty versus Poverty: Jalousie in Colors' is part of a government project to relocate people from the displacement camps that sprouted up after Haiti's 2010 earthquake. Dieu Nalio Chery/AP
The grayness of the day reflects off of the waters of Ruffins Pond in the Lee Hill are of Spotsylvania, Va., as a heron perches on a submerged stump. An early spring snowstorm had blanketed the area. Dave Ellis/The Free Lance-Star/AP
A man snowboarding in Kiev, Ukraine. The temperature in the Ukrainian capital fell to about -3 Celsius (27 F). Sergei Chuzavkov/AP
Tracers streaks are illuminated at night during the Big Sandy Shoot in Mohave County, Arizona, March 22. The Big Sandy Shoot is the largest organized machine gun shoot in the US attended by shooters from around the country. Vintage and replica style machine guns and cannons are some of the weapons displayed during the event. Joshua Lott/Reuters
Track and field's world governing body is disputing charges leveled by both a British newspaper and German broadcaster that doping continues to be a problem in the sport.
The world governing body for track and field (IAAF) fought back on Tuesday against media reports of suspected widespread doping in the sport, rejecting accusations it failed to investigate dubious drugs test results properly.