Israeli Internal Security Minister Yitzhak Aharonovitch said Saturday night he blamed Hamas for the latest rocket offensive on southern Israel, vowing a tough response to the growing violence. "Hamas is responsible; it''s the master of the house," Israeli daily (Yedioth Ahronoth) quoted Aharonovitch as saying while touring the site of Saturday''s rocket attack in Beersheba, adding "The heavy responsibility lies with Hamas and it will pay a heavy price." The rocket fire towards the south reached its current peak Saturday night with several salvos aimed at Beersheba. One of the Grad rockets hit a home, leaving one man dead and one woman mortally wounded.