A Toronto youth has been charged with child pornography after allegedly threatening a girl online.

The girl told police the suspect, 15, threatened her over the Internet and asked her to perform sexual acts.

The suspect contacted her through her computer and text phone messages for a month, she said.

Police executed a warrant at a Toronto home Thursday and seized three computers and a cellphone believed to contain evidence related to images of child pornography and threats made by the accused.

The accused has been charged with one count of extortion, one count of invitation to sexual touching, one count of possession of child pornography and criminal harassment.