Lars Vilks who is the Swedish cartoonist who sparked controversy back in 2007 when he drew the Islamic Prophet Mohammad with a body of a dog died in a car accident.
The 75-year-old Vilks has been spending his life under police protection following the publication of the drawings.
During the accident, he was sitting in a police car when it was hit by a truck.
The two officers that were guarding Vilks also dies in the accident.
"This is a very tragic incident. It is now important to all of us that we do everything we can to investigate what happened and what caused the collision," said the statement of the Sweedish police.
"Initially, there is nothing that points to anyone else being involved," it added.
Since the publications of the cartoons Vilks had a bounty on his head and received death threats from Islamic extremists as the depiction of Mohammad is banned in Islam.
However, during his life, Vilks himself said that his intent was not to provoke Muslims but to rather challenge the state of political correctness in modern art.