Police investigating an accident on the M5 near Tiverton on Friday have released further details.
Four people travelling in a Peugeot 206 were taken to hospital after it came off the southbound slip road at Junction 27 and overturned in a ditch.
One of the casualties is a six-year-old child who suffered a serious head injury.
Police now say another vehicle was involved - an articulated lorry which collided with the car.
They'd like to hear from anyone who witnessed the accident which happened at about 12.45pm.
Work begins on project to rebuild fire-hit Exeter landmark
Car crashes through wall near Exeter Cathedral
Plymouth community group scoops national award
Naming streets after famous people could be over in parts of Devon
Devon man jailed for escaping lawful custody
