Washington (AFP) – US border guards on horseback acted in an unprofessional manner toward Haitians trying to enter the country, but did not strike migrants with their reins, an official investigative released Friday found. Photos of guards seeking to tackle migrants near Del Rio, Texas last year sparked a firestorm of criticism. In one shot, an agent on horseback grabbed a man by his shirt, while another shows him holding a group at bay by twirling his reins. “A careful review and analysis of videos photos and eyewitness accounts” found “no evidence Border Patrol agents involved in this incide…