The family of a father and son from Birmingham killed in a car crash in East Yorkshire say their loss is "beyond belief" as the boy's mother and nine-year-old sister recover in hospital.
Ethan Sarkar, 14, and his father Derek, 46, died when their Volkswagen Golf and a Volvo collided head-on on the A614 near East Cowick.
The driver of the Volvo, Sheila Stavert-Lee, 70, from Wigginton, near York, was also killed.
Mr Sarkar's wife, Karen, 43, and daughter, Abbie, were airlifted to Leeds General Infirmary after the crash, which happened on a bridge over a canal.
The Sarkar family said in a statement: "Derek was a wonderful father, husband and a lively and central part of our family. Ethan was at the heart of all our lives, their loss to us is beyond belief.
"We thank all Derek and Ethan's friends for their kind words, thoughts and support. They mean a lot to us and we know they will be missed by all of you.
"We also understand that there is a third victim in this tragic accident and our hearts and thoughts go out to her family and friends.
Humberside Police described Mrs Sarkar's condition as "poorly" and said Abbie was "stable".