James Nathanael Boisrand, from Port-au-Prince, Haiti, feeds his friend Salvant Kesner, who is one of the earthquake victims treated on the USNS Comfort after January 12's devastating earthquake. The USNS Comfort, a 1,000-bed floating hospital ship that arrived at Port-au-Prince a little more than a week after the earthquake, allows family members and friends to accompany the patients to assist them during their treatment. Salvant was buried in the rubble of a collapsed building for four days. Zuma/Newscom
Sophie Olson, of Happy Valley, makes her way through the tulip fields of the Wooden Shoe Tulip Farm in Woodburn, Ore. The 25th Anniversary Tulip Fest opened March 25 and will run through April 25. The Iverson family has been farming this land for 60 years, tulips since 1974. Ross William Hamilton/The Oregonian/AP
Police officers detain a participant of an unauthorized anti-Kremlin protest in Moscow on March 31. Russian police broke up anti-Kremlin protests in Moscow and St. Petersburg, detaining dozens of demonstrators. Sergey Ponomarev/AP
A car sits submerged in the parking lot of the Warwick Mall on March 30, in Warwick, R.I. The mall is adjacent to the Pawtuxet River, which crested earlier in the day after heavy rainfall. Joe Giblin/AP
A US Marine from Kilo company, 3rd Battalion, 6th Marines takes a photograph of an Afghan man after collecting census data from Afghans outside a Marine base in Marjah district, Helmand province. Asmaa Waguih/Reuters
Actors are seen during a press rehearsal of 'Nagyida,' a performance by the Hungarian dance company EsperiDance, in Madrid on March 31. Andrea Comas/Reuters
A zebra finch is seen in this undated handout. Scientists have cracked the genetic code of a songbird for the first time, identifying more than 800 genes linked to song learning in a finding that may shed light on human speech disorders. Baby zebra finches learn to sing in virtually the same way as human babies learn to speak - by copying their elders - which means the tiny bird should serve as a valuable model for understanding human learning and memory. L. Brian Stauffer/University of Illinois News Bureau/Reuters
Tian Pengfei of China plays a shot during round one of 2010 World Snooker China Open against Ronnie O'Sullivan of England in Beijing, on March 31. Tian won 5-3. Gong Lei/Xinhua
A very patient poodle is getting groomed for nearly 2 hours prior to the 26th International Canine Show in Granada, Spain. Pascal Saez/Sipa Press/Newscom
In this March 29 photo, David Nestor (l.), of David Borneman, LLC, Restoring Nature With Fire, works with another crew member to control a fire to burn weeds near Frederick Meijer Garden's sculpture Scarlatti in Grands Rapid, Mich. Areas were strategically lit on fire and then quickly put out so that wild flowers will be able to thrive in the spring. Emily Zoladz/The Grand Rapids Press/AP
In this March 30 photo, a boy holds on to his sweatshirt on a swing at John Ball Park in Grand Rapids, Mich. Emily Zoladz/The Grand Rapids Press/AP
Madelyn Belliveau, of Saco, waits in line on Wednesday, outside of the Portland Expo in Portland, Maine, to get tickets for President Barack Obama's visit Thursday. Belliveau arrived before 6 a.m., hoping to see the president on his first visit to Maine since being elected. Joel Page/AP
Earlier Sunday, the international medical charity said it had withdrawn from the northern Afghan city of Kunduz after deadly airstrikes to its hospital.
ByLolita C. Baldor, Associated Press
Médecins Sans Frontières
U.S. Defense Secretary Ash Carter is promising a full and transparent investigation into whether a U.S. aircraft providing air support for American and Afghan special operations forces in Afghanistan was responsible for the explosions that destroyed a hospital and killed 22 people.