El día en imágenes

In this frame grab from video provided by the Russian Ministry for Emergency Situations, rescue teams work inside the tunnel in Moscow where a rush-hour subway train derailed Tuesday, July 15, 2014, killing at least 20 people and sending 150 others to the hospital, many with serious injuries, Russian officials said. Officials vigorously dismissed terrorism as a possible cause. (AP Photo/Russian Emergency Situation Ministry)Uncredited (AP)

Israeli soldier sleep beside a military vehicle near the Israel Gaza Border, early Tuesday, July 15, 2014. The Israeli Cabinet has accepted an Egyptian proposal for a cease-fire to end a week of conflict with Hamas militants in the Gaza Strip that has killed 185 Palestinians and exposed millions of Israelis to Hamas rocket fire. No Israelis have been killed as a result of Hamas rocket launches. A senior Hamas official says the Palestinian militant group rejects an Egyptian proposal for a cease-fire with Israel. (AP Photo/Ariel Schalit)Ariel Schalit (AP)

In this Monday, July 14, 2014 photo, young Palestinian girl Fulla Attar, 10, rests in a classroom of the New Gaza Boys United Nations school, where dozens of families have sought refuge after fleeing their home in fear of Israeli airstrikes. 20 U.N. schools took in more than 17,000 displaced Gazans, many of them children, after Saturday's warnings by Israel that civilians must clear out of northern Gaza. (AP Photo/Khalil Hamra)Khalil Hamra (AP)

Igor Chernetsov, whose wife was killed in a building demolished by an airstrike, gestures near the collapsed structure in Snizhne, 100 kilometers east of Donetsk, eastern Ukraine, Tuesday, July 15, 2014. At least nine civilians were killed in the attack, rescue workers said, adding to the steadily growing number of civilians killed over four months in a dogged pro-Russian insurgency. Government officials denied the Tuesday strike was carried out by Ukraine's air force. (AP Photo/Dmitry Lovetsky)Dmitry Lovetsky (AP)

Israeli soldier sleep beside a military vehicle near the Israel Gaza Border, early Tuesday, July 15, 2014. The Israeli Cabinet has accepted an Egyptian proposal for a cease-fire to end a week of conflict with Hamas militants in the Gaza Strip that has killed 185 Palestinians and exposed millions of Israelis to Hamas rocket fire. No Israelis have been killed as a result of Hamas rocket launches. A senior Hamas official says the Palestinian militant group rejects an Egyptian proposal for a cease-fire with Israel. (AP Photo/Ariel Schalit)Ariel Schalit (AP)

In this frame grab from video provided by the Russian Ministry for Emergency Situations, rescue teams work inside the tunnel in Moscow where a rush-hour subway train derailed Tuesday, July 15, 2014, killing at least 20 people and sending 150 others to the hospital, many with serious injuries, Russian officials said. Officials vigorously dismissed terrorism as a possible cause. (AP Photo/Russian Emergency Situation Ministry)Uncredited (AP)

In this Monday, July 14, 2014 photo, young Palestinian girl Fulla Attar, 10, rests in a classroom of the New Gaza Boys United Nations school, where dozens of families have sought refuge after fleeing their home in fear of Israeli airstrikes. 20 U.N. schools took in more than 17,000 displaced Gazans, many of them children, after Saturday's warnings by Israel that civilians must clear out of northern Gaza. (AP Photo/Khalil Hamra)Khalil Hamra (AP)

Igor Chernetsov, whose wife was killed in a building demolished by an airstrike, gestures near the collapsed structure in Snizhne, 100 kilometers east of Donetsk, eastern Ukraine, Tuesday, July 15, 2014. At least nine civilians were killed in the attack, rescue workers said, adding to the steadily growing number of civilians killed over four months in a dogged pro-Russian insurgency. Government officials denied the Tuesday strike was carried out by Ukraine's air force. (AP Photo/Dmitry Lovetsky)Dmitry Lovetsky (AP)