A 17-year-old boy has suffered a cardiac arrest after he was Tasered by police.
He is in a serious but stable condition in hospital following the incident which took place in Coventry on Saturday evening.
West Midlands Police said: “A 17-year-old was Tasered in an effort to detain him, but immediately required CPR as he went into cardiac arrest.”
Three other youths aged 17 as well as a 13-year-old were also arrested after officers were called to reports of a disturbance in Prior Deram Walk in the Canley area of the city shortly after 9.30pm.
The four were detained on suspicion of violent disorder and assaulting a police officer.
The West Midlands force has referred the incident to the Independent Office for Police Conduct.