Soviet writer Eduard Uspensky, who created the world-famous Cheburashka character, died in Moscow aged 80, his daughter Irina said.
"Regretfully, Eduard Nikolayevich has passed away," TASS cited her as saying.
According to earlier reports, Uspensky was diagnosed with cancer. On August 9, a medical source said that the writer was receiving emergency medical assistance after falling unconscious in his home.
About 60 cartoons are based on books and scripts, written by Uspensky, including Crocodile Gena and His Friends and Uncle Fedor, His Dog, and His Cat.