The government continues to pursue and arrest members of Palestinian radical groups. One of the reasons was the reasons was reports that Hamas had upgraded their locally made Qassam rockets to increase their range from 12 to 15 kilometers. The rockets are unguided, thus quite inaccurate and carry eleven pounds of explosives in their warhead. The rockets are fired from Gaza, where they are made (from components smuggled in). So far, dozens of Qassam rockets have been fired at Israeli targets, but have not killed anyone.