European Athletics president Svein Arne Hansen has died at the age of 74.
Hansen, who was first elected president in 2015, died in Oslo after failing to recover from a stroke he had suffered in March.
European Athletics interim president Dobromir Karamarinov said: "I am deeply saddened to learn of the passing of Svein Arne today.
"He was a great leader, a visionary for our sport and a charismatic personality within the athletics family.
"He was much loved by all those who knew him well and above all he was a friend of the athletes. We have lost a great man."