A selection of AP photos taken over the past 24 hours.
Russia in Syria
In this Thursday, April 14, 2016 photo, smoke rises from a controlled land mine detonation by Russian experts in the ancient town of Palmyra in the central Homs province, Syria. Russian combat engineers arrived in Syria on a mission to clear mines in Palmyra, which has been recaptured from Islamic State militants in an offensive that has proven Russia's military might in Syria despite a drawdown of its warplanes. (AP Photo/Hassan Ammar)
Obama Wounded Warrior Ride
President Barack Obama gestures as he stands next to retired Army Capt. William Reynolds, right, and Vice President Joe Biden, after the veteran introduced the president at the Wounded Warrior Ride, a cycling event for wounded veterans, Thursday, April 14, 2016, at the White House in Washington. (AP Photo/Jacquelyn Martin)
Japan Runaway Chimp
Chacha, the male chimp, screams at a worker in Sendai, northern Japan, Thursday, April 14, 2016 after fleeing from a zoo. The chimpanzee tried desperately to avoid being captured by climbing an electric pole. Chacha was on the loose nearly two hours Thursday after it disappeared from the Yagiyama Zoological Park in Sendai, the city that's hosting finance ministers from the Group of Seven industrialized nations in May. (Kyodo News via AP)
France Labor Protests
Demonstrators carry an injuried man during a high school protest in Paris, Thursday, April 14, 2016. Protesters across France are again marching to voice their anger at labor reforms being championed by the country's Socialist government. (AP Photo/Christophe Ena)
DEM 2016 Debate
Democratic presidential candidates Sen. Bernie Sanders, I-V.t, right, and Hillary Clinton react as they speak during the CNN Democratic Presidential Primary Debate at the Brooklyn Navy Yard Thursday, April 14, 2016, New York. (AP Photo/Seth Wenig)
Monte Carlo Tennis Master
Swiss Roger Federer plays a return to Spain's Roberto Bautista Agut during their match at the Monte Carlo Tennis Masters tournament in Monaco, Thursday, April 14, 2016. (AP Photo/Lionel Cironneau)
PTSD Dog Study
Military veteran Cole Lyle, who suffers with PTSD, with his dog Kaya, testifies on Capitol Hill in Washington, Thursday, April 14, 2016, before the House National Security subcommittee hearing on "Connecting Veterans with PTSD with Service Dogs." (AP Photo/Pablo Martinez Monsivais)
Italy Design Fair
Visitors stand inside the installation 'Le mie prigioni' (My Jails), by architect Alessandro Mendini, part of the 'Fuori Salone' exhibitions during the Design Week, in Milan, Italy, Thursday, April 14, 2016. (AP Photo/Luca Bruno)
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