A teenager suffered a cardiac arrest after being tasered by police in Coventry on Saturday night.
West Midlands Police (WMP) said the incident happened after they were called to reports of a disturbance in Prior Deram Walk, Canley, just after 9.30pm.
WMP said a 17-year-old was tasered in an “effort to detain him, but immediately required CPR as he went into cardiac arrest”.
The boy remains in hospital today in a serious but stable condition.
Four other teenagers, three aged 17 and a 13-year-old, were arrested for violent disorder and assaulting a police officer as a result of the incident, WMP said in a statement.
Two male police officers received minor injuries which did not require hospital treatment and a police car windscreen was smashed.
The incident has been referred to the Independent Office for Police Conduct, WMP said.