From NPR News in Washington, I'm Korva Coleman.Air raid sirens went off in Tel Aviv earlier today.Israeli military says its rocket interception system brought down a rocket headed for the city.There are no reports of injuries.Israel bombarded Gaza in a series of overnight air strikes in response to militant rocket launches into Israel.The air strikes have killed at least 39 Palestinians and three Israelis.NPR's Anthony Kuhn reports from Gaza City.Children picked through the rubble of Hamas official Mahmoud Abusala's house, which was leveled in an Israeli air raid.Other attacks destroyed Hamas police headquarters and the office of Hamas Prime Minister Ismail Haniyeh.Visiting Tunisian, Foreign Minister Rafik Abdesslem and his delegation called on Israel to stop its attacks on Gaza one day after Egypt's prime minister paid a similar visit.Militants launched around 60 rockets from Gaza at Israel on Saturday.Israel says militants have launched around 700 rockets at it in the four days since the conflict escalated. Anthony Kuhn, NPR News, Gaza City.President Obama goes to Thailand Sunday, the first stop on his Southeast Asian tour.Douglas Baction reports from Bangkok. Thailand is expected to announce it will join negotiations for a strategic trade agreement.The pact called the Trans-Pacific Partnership is intended to bolster trade between Southeast Asia and the United States.Currently 11 countries on both sides of the Pacific are negotiating the agreement which backers say will generate tens of billions of dollars in global income gains.