Israel strikes Gaza after Hamas fires incendiary balloons

Israeli police arrest a Palestinian man at the Damascus Gate to the Old City of Jerusalem Thursday, during a protest against incendiary chants used by ultranationalist Israelis at their “Flags March” at the same site on Tuesday. (AP Photo/Maya Alleruzzo)

Palestinian Mai Dwekat, 36, center, holds her crying daughter Batoul, 10, during the funeral of her son Ahmad Shamsa, 15, in the West Bank village of Beta, near Nablus, Thursday. The Palestinian health ministry said Thursday that Shamsa who was shot by Israeli troops in the West Bank a day earlier died of his injuries. (AP Photo/Nasser Nasser)

JERUSALEM — Israel launched airstrikes on the Gaza Strip late Thursday for a second time since a shaky cease-fire ended last month’s 11-day war. The strikes came after activists mobilized by Gaza’s militant Hamas rulers launched incendiary balloons into Israel for a third straight day.