One person was critically injured in a shooting Wednesday at a machinery shop in Medley, authorities said, after what police described as a verbal altercation between two people at a business. Medley police responded to the area of Northwest 109th Street and Northwest South River Drive after receiving a report of gunfire. Initial information indicated that one person shot the other during the dispute, police said. The victim was shot in the chest. Miami-Dade Fire Rescue took the person to a landing zone, where they were flown to a hospital. Their condition was critical, according to authorities. The person who fired the shot was detained for questioning and is cooperating with investigators, police said. Authorities have not identified either person or determined whether they worked at the business or were visiting. The Miami-Dade Sheriff’s Office is leading the investigation. Police said there was no ongoing threat to the public.