MIAMI (AP) — Ex-NFL star Antonio Brown says he was briefly detained by police following an altercation in which gunshots were fired outside Adin Ross’ celebrity boxing event in Miami. Miami police confirmed in a written statement that officers responded to the area at about 3 a.m. after receiving an alert from the gunshot-detection system ShotSpotter. Officer Kiara Delva, a department spokeswoman, said police questioned several people but made no arrests. Brown posted on social media that he had been “jumped by multiple individuals who tried to steal my jewelry and cause physical harm to me” at the popular streamer Ross’ event.