KIEV, Ukraine (AP) — Ukraine authorities on Tuesday cast doubt on child pornography charges brought by U.S. prosecutors against a Ukrainian national, saying local investigators have found no evidence that the suspect has committed a crime.

Maksym Shynkarenko, a 33-year-old from the eastern city of Kharkiv was charged in New Jersey on Monday with founding and operating a Ukraine-based child pornography website that had customers around the world and has resulted in 560 convictions throughout the United States alone.