A rocket-propelled grenade exploded Saturday near the Tunisian consulate in the restive eastern Libyan city of Benghazi without causing any casualties or damage. An AFP photographer on the scene said the explosion left a crater in the ground in front of the diplomatic mission, and caused mi**r damage to its outer wall. A source at the consulate told AFP the explosion did **t harm anyone, and a police ******r at the site said the blast was caused by a rocket-propelled grenade.