A teenager who died on the M5 after being hit by a car was "being taken into police custody".

The 17-year-old was being transported to custody by Avon and Somerset Police before the incident, the Independent Office for Police Conduct (IOPC).

An IOPC spokesperson said an investigation had been launched, adding: "Our sympathies are with the girl’s loved ones and everyone affected by her death."

More to follow...