A 13-year-old girl died in a three-vehicle crash which also hospitalised her mother and injured her sister.
Ingrid Messenger was a passenger in a Citroen being driven by her mother when it was involved in a collision with a Land Rover and Mercedes Sprinter Van.
The vehicles crashed near the Crown Inn at Broadfield, near Southwaite, at about 14:20 GMT on Monday.
A man, 45, has been arrested on suspicion of driving offences and perverting the course of justice.
Ingrid's mother, 43, is in a stable condition at the Royal Victoria Infirmary in Newcastle after suffering serious injuries.
The teenager's sister is at the Cumberland Infirmary in Carlisle with minor injuries, Cumbria Police said.
The drivers of the Land Rover, a 45-year-old man form West Cumbria, and the van, a 60-year-old man from Lancashire, were treated at the scene for shock and minor injuries.
Vicki Jackson, head teacher of Caldew School where Ingrid was a pupil, said she was "deeply saddened".
"Ingrid was exceptional in many ways," she said.
"She was a highly conscientious student who always gave her best and was a delight to have as a member of our close school community.
"She actively took part in many school events including the school choir, performing arts productions and was a pupil librarian.
"Ingrid was always kind and supportive of others and we will miss her greatly."
The arrested man has been released under investigation.