Israel's army launched an air raid on the Gaza Strip on on Monday evening after Hamas fired a rocket into southern Israel, said sources from both sides, adding that no one was hurt. "This morning, a rocket was fired from the Gaza Strip into an uninhabited area of southern Israel... without causing any injuries," the Israeli military said in a statement. "In response to this attack, the army targeted a Hamas military post in the centre of the Gaza strip," it added. The army said it was the 20th rocket fired from the territory, which is controlled by Hamas, since the start of the year. Palestinian security sources and witnesses said the Israeli army targeted a military site belonging to Hamas's armed wing, the Ezzedine Al-Qassam Brigades, with no injuries. Unfortunately, US Secretary of State John Kerry condemned alleged attacks by Palestinians as he met Israeli Prime Minister Benjamin Netanyahu in occupied Jerusalem on Tuesday in his latest bid to ease nearly two months of violence. Arriving with scant hopes for a major breakthrough, Kerry said he would discuss with Netanyahu and Palestinian President Mahmoud Abbas in Ramallah ways of calming tensions. "Clearly, no people anywhere should live with daily violence, with attacks in the streets, with knives, with scissors, cars," Kerry told reporters at Netanyahu's office ahead of talks with the Israeli prime minister. "And it is very clear to us that terrorism, these acts of terrorism, deserve the condemnation that they are receiving and today I express my complete condemnation for any act of terror that takes innocent lives."