Acclaimed children's book author Eric Carle, best known for his classic story "The Very Hungry Caterpillar," has died at the age of 91.
US media said Carle died of kidney failure on Sunday at his studio in the US state of Massachusetts, with family members at his side.
Carle was born in 1929 in upstate New York. He published his first children's book, "Brown Bear, Brown Bear, What Do You See?" in 1967.
"The Very Hungry Caterpillar," which tells the story of a green and red caterpillar that changes into a proudly multicolored butterfly, was published in 1969. The book has been translated into more than 60 languages, and sold more than 50 million copies.
On his official website, a family statement said, "In the light of the moon, holding on to a good star, a painter of rainbows is now travelling across the night sky."