(170222) -- HOUSTON, Feb. 22, 2017 (Xinhua) -- Two policemen walk past the gate of Ben Taub Hospital where shots fired in Houston, the United States, Feb. 21, 2017. The police of Houston, a city in south America, rushed to a downtown hospital Tuesday afternoon after reports of shots fired inside the building. (Xinhua/Zhong Jia) (lrz)more(170222) -- HOUSTON, Feb. 22, 2017 (Xinhua) -- Mecical personnels evacuate a patient from Ben Taub Hospital in Houston, the United States, Feb. 21, 2017. The police of Houston, a city in south America, rushed to a downtown hospital Tuesday afternoon after reports of shots fired inside the building. (Xinhua/Zhong Jia) (lrz)more(170222) -- HOUSTON, Feb. 22, 2017 (Xinhua) -- Mecical personnels and police evacuate a patient from Ben Taub Hospital in Houston, the United States, Feb. 21, 2017. The police of Houston, a city in south America, rushed to a downtown hospital Tuesday afternoon after reports of shots fired inside the building. (Xinhua/Zhong Jia) (lrz)more