In a statement, Jessica Baker's family said she was a "wonderful daughter, granddaughter and niece, devoted sister and loyal friend".

"Her untimely death has led to a massive void in our lives that will never be filled."

Read more: Teenager who survived bus crash describes what he saw

Her school also paid tribute, saying she was "unequivocally kind and empathetic... a dedicated friend who was a well-liked and respected member of our school community".

It added: "She was an unassuming, polite and conscientious student who exemplified the values of our school."

Jessica died when the bus she was travelling in overturned on the M53 on Friday while on the way to West Kirby Grammar School.

The driver also died, with his family saying he was "suffering medical issues" while at the wheel.

Jessica's family and her school both highlighted her sporting achievements.

She was a "talented climber", her family said, who "helped coach younger climbers and competed around the country inspiring others".

West Kirby Grammar School described her as a "keen sportswoman... demonstrating an unwavering love of - and commitment to - rock climbing". She previously represented Wales in national competitions, the school added.

They also said they would work closely with her friends and family to ensure they celebrate her life this week "in the most fitting way possible".

"Jessica will be greatly and sadly missed by her friends, teammates, classmates, and all at West Kirby Grammar School who had the pleasure and privilege to encounter her."

Read more on Sky News:
Two men, aged 53 and 65, stabbed to death
At least 13 people killed in nightclub fire in Spain

The investigation into the crash is ongoing and police are still appealing for witnesses and dash-cam footage.

Four children were taken to hospital after the crash and a 14-year-old boy is said to have sustained life-changing injuries.