NEW YORK (AP) — Poire said those who carried out the attacks will be held responsible . President Felipe Calderon responds to attack via his Twitter account . Grenade attack reported at a casino in Monterrey , in northeastern Mexico . Up to 30 people thought trapped in the casino because of debris .
NEW YORK (AP) — President Felipe Calderon responds to attack via his Twitter account . Grenade attack reported at a casino in Monterrey , in northeastern Mexico . Up to 30 people thought trapped in the casino because of debris .