the masterminds" of the August 18, 2011 attacks, and his collaborator, Mahmoud Hanani. Palestinian militant response to Israeli air strikes After the Israeli Air Force attacked targets in the Gaza Strip, at least 10 rockets were fired into southern Israel, hitting the cities of Ashkelon and Beersheba, causing no injuries. Two additional rockets landed in a courtyard of a Yeshiva in Ashdod, wounding 10 people and lightly damaging the buildings. The Abdullah Azzam Shaheed Brigade, a radical Islamic group affiliated with Al Qaeda, claimed responsibility for the attack. Over 80 rockets launched from Gaza hit cities in Israel, killing one Israeli and wounding over a dozen. Seven rockets were fired almost simultaneously at Beersheba. The Iron Dome rocket defense system intercepted five of them, but one hit a residential area and killed Israeli Yossi Shushan. The Lachish subdistrict was hit by 28 rockets and the Negev subdistrict was hit by nine rockets. Four Israelis from the Bnei Shimon Regional Council were injured while running for shelter in Beersheba. Three Palestinians working in Israel were injured by Grad rockets after they exploded in a field in southern Ashdod. Vehicles and homes were damaged by rockets in Israeli cities near Gaza. A Grad rocket exploded near the coastal city of Ashkelon in the night, though no injuries or damage were reported. It was unknown whether the rocket was intercepted by the Iron Dome, though it was confirmed that a second rocket was intercepted. On August 21, an additional 12 rockets were fired at Israel. Three were intercepted by the Iron Dome in Ashkelon. One of the rockets hit an empty high school building in Beersheba. No one was in the school because "the city had canceled educational activities in light of the missile attacks that Palestinians in Gaza have been launching against the south in the last few days" according to Beersheba deputy mayor Heftziba Zohar. Later that night, a rocket killed a dog. Barrages of rockets were fired at Beersheba and Ashkelon. Half of them were intercepted by the Iron Dome. Mortar shells fired at farmland in the Eshkol Regional Council contained phosphorus, which is designed to create a more intense fire after detonation. 40 rockets were fired on Sunday. Several structures were damaged and a car caught fire after two rockets were fired at Ashkelon. A three-month-old infant was injured by glass splinters. A 13-year-old Palestinian boy, Mahmoud Abu Samra,