CBRN event in Spain on Wed 29th April 2026

Arsenal fans were caught up in troubles before their Champions League first-leg as Atletico Madrid supporters clashed with police Atletico Madrid fans clashed with Spanish police ahead of their Champions League semi-final against Arsenal. The local police were said to have used rubber bullets to quell the troubles but Gunners supporters were caught up in the troubles - some reportedly being teargassed. Spanish outlet Marca published footage of the tensions outside the stadium, they reported that the local authorities charged at supporters. The video shows the riot police tactically lined up while chants can be heard, as well as bangs from, what appears to be a gun firing rubber bullets. Smoke appears on the screen, with fans shielding their mouth, nose and eyes but the cause, whether it is from smoke bombs or tear gas is unknown. However, an eyewitness told The Mirror that police sprayed gas to disperse the crowd.