At least 2,360 people in 77 countries are suspected of trying to download videos of young children being sexually abused and even raped, according to authorities who intercepted the illicit material on a Web server in Austria.

The FBI was investigating about 600 of the suspects in the United States, Interior Minister Guenther Platter said on Wednesday. German authorities were following leads on another 400 people, France was looking into more than 100 others, and 23 suspects were Austrians, he said.

Platter said the videos included images that showed "the worst kind of child sexual abuse."