Treasury Secretary Steven Mnuchin talks to reporters during Monday's press briefing at the White House. Mnuchin announced sanctions against 271 employees of Syria's Scientific Studies and Research Center.
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A pilot prepares to launch an unmanned aerial vehicle from a ground control station earlier this year. The Air Force is moving to treat psychological stress faced by remote pilots and analysts a little more like the effects of traditional warfare.
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U.S. Secretary of State Rex Tillerson, pictured in Moscow last week, says Iran has been abiding by a 2015 nuclear agreement. But he told Congress in a letter that the Trump administration was reviewing the lifting of U.S. sanctions against Iran to determine if that was in U.S. interests.
In a 2013 photo, visitors leave St. Catherine's Monastery, a major religious tourism site in southern Sinai. Gunmen attacked a checkpoint near the monastery Tuesday, killing one security officer and wounding four.
Protesters hold up portraits of Palestinians detained in Israeli jails during a demonstration in Gaza City to show support to the prisoners who launched a hunger strike on Monday.
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A picture taken April 16 shows the damage a day after a suicide car bombing attack in Rashidin, west of Aleppo, targeted buses carrying Syrians evacuated from Fuaa and Kafraya, two besieged Shiite villages.
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