Terror organizations in the Gaza Strip have significantly improved their ability to attack Israeli population centers, according to an assessment by Military Intelligence chief Maj.-Gen. Amos Yadlin, quoted by Army Radio on Tuesday. In recent days, several successful tests of Iranian-made rockets have been carried out, he said, adding that the rockets had a range of up to 60 kilometers. As a result, the entire Tel Aviv region is under threat of rocket fire from the Strip, he said.