A hardline Sunni group has launched rocket attacks on strongholds of the Shia group Hezbollah in northeastern Lebanon, according to the state-run news agency.<br /><br />On Saturday, the Al Nusra Front released this video which shows rockets being fired. The location isn't clear.<br /><br />Hours earlier, the group had warned Sunni Muslims to stay away from Shia dominated areas.<br /><br />The Al Nusra Front which is fighting the Syrian government, had said that it would attack strongholds of Hezbollah, which is battling alongside the forces of President Bashar Al Assad.