STEPANAKERT, Nagorno-Karabakh (AP) — Rocket and artillery barrage hit residential areas Saturday hours after the United States hosted top diplomats from Armenia and Azerbaijan for talks on settling their decades-long conflict over Nagorno-Karabakh. The heavy shelling forced residents of Stepanakert, the regional capital of Nagorno-Karabakh, into shelters, as emergency teams rushed to extinguish fires. Nagorno-Karabakh authorities said other towns in the region were also targeted by Azerbaijani artillery fire.