UPDATE @ 4:29 p.m.
Houston Police Chief Art Acevedo told media outlets they found no evidence of a shooter or gunshot victims at Ben Taub Hospital.
EARLIER
Police in Houston are responding to reports of shots fired inside a hospital at a Houston hospital, according to the Associated Press.
There were no immediate reports of injuries from the incident at the Ben Taub Hospital, reports of which started around 2 p.m., according to the AP.
Arial scenes shown in news broadcasts show that dozens of people are leaving the hospital, some appearing to be patients on gurneys, according to the AP.