BEIRUT (Reuters) - A ceasefire deal agreed to by Lebanon and Israel expands the area expected to be free of Hezbollah's arms and spells out the Lebanese security forces entitled to carry weapons, sharpening language from prior U.N. resolutions on the matter in ways that appear to corner Hezbollah, diplomats and analysts said.

Israel said on Thursday that its ceasefire with Hezbollah was breached hours after Lebanese security sources said Israeli tanks attacked six areas of southern Lebanon, calling into question a truce reached after more than a year of fighting.