The police watchdog says it is investigating after a teenager who was tasered by an officer on a motorway was fatally hit by a car.
Logan Smith, 18, was being taken to hospital in an ambulance at about 11pm on Sunday when the vehicle stopped on the hard shoulder of the M5 in Somerset.
The Independent Office for Police Conduct (IOPC) said the vehicle stopped on the northbound carriageway "due to the concerns of ambulance staff".
Mr Smith got out of the ambulance near the junction for Weston-super-Mare and "entered the live lanes of the motorway", the watchdog added.
Police were called and an officer arrived at the scene, with bodycam footage showing the officer discharging their Taser, causing the teenager to fall to the ground.
"Soon afterwards" Mr Smith was struck by a car travelling on the southbound carriageway, the IOPC said.
The watchdog said it was investigating the "actions and decisions taken by Avon and Somerset Police prior to the death of a teenager".
IOPC Director Derrick Campbell said: "My thoughts and sympathies are with Logan's family and friends and everyone affected by this shocking and tragic incident.
"We want to reassure everyone that we will independently investigate all the circumstances surrounding this incident, including the use of a Taser.
"After being notified by the force, we sent our investigators to the police post incident procedure to begin gathering evidence.
"We have taken initial accounts from the officer and ambulance staff involved.
"We met with Logan's family on Tuesday, to give our condolences, explain our role and to provide some further detail about our investigation, including a Taser being discharged during the incident.
"We will continue to keep them updated and they request that their privacy be respected at such a difficult time."
The coroner has been informed and formal identification and a post-mortem have taken place.
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(c) Sky News 2025: Teenager fatally hit by car on motorway had been tasered by police, watchdog says
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