Smoke rises from a hotel building after an explosion and gunfire in the city of Kabul, Afghanistan, Dec. 12, 2022. AP A loud blast followed by gunfire was heard in downtown Kabul on Monday afternoon as assailants attacked a guesthouse used predominantly by Chinese nationals, according to the Kabul police. An Italian-run emergency hospital less than a mile away in the Afghan capital said it had received 21 patients from the attack, three of whom were dead on arrival. A photo shared with CBS News by Kabul police showed Chinese signage on the wall of the multi-story building. A Kabul…