The sound of what seemed to be repeated explosions were heard Wednesday afternoon on the city's south side on the way to Pleasanton.
According to SAPD Public Information Officer Romana Lopez, the sounds were being caused by training exercises at the San Antonio Police Department Training Academy located off Southeast Loop 410.
The sounds were so loud some KENS 5 viewers reported the walls and windows of their homes shaking.
One viewer who lives near Hot Wells Boulevard and South Presa Street called KENS 5 and said the explosions left a ringing in her ears. She lives about 5 miles from the SAPD Training Academy.
KENS 5 viewer Katrina Giovanna Bononcini said the loud "booming" sounds could be heard as early as 9 a.m. Wednesday.
© 2018 KENS-TV