Rockets fired from Lebanon hit north Israel

       At least three Katyusha rockets fired from Lebanon hit northern Israel on Wednesday morning, reigniting fears of a second front opening during Israel's offensive against Hamas in Gaza. Police said the rockets landed in open areas and there were no reports of damage or injuries. People in northern Israel were asked to head to bomb shelters. A rocket alert siren was heard in the town of Kiryat Shmona, which was battered by hundreds of the rockets fired by Hezbollah during the second Lebanon war. A similar incident occurred on Thursday, when at least two Katyusha rockets fired from south Lebanon exploded in northern Israel. Two people were lightly wounded in the attack, and a number of others suffered from shock. Israel Defense Forces troops immediately fired five artillery shells at Lebanon in response to the rockets, an Israeli security source said. A military spokesman said Israel aimed "a pinpoint response at the source of fire." Israeli officials have expressed concern that militants in Lebanon could try to open a second front in the Gaza campaign in solidarity with Hamas. A Hezbollah minister in Lebanon's Cabinet denied any involvement by the militant group in the firing of the rockets on Thursday. In 2006, Hezbollah guerrillas in Lebanon fired almost 4000 rockets at Israel during the Second Lebanon War. (09,28)