WATERLOO, Iowa (AP) — A Northeast Iowa man is charged with extortion after investigators say he threatened to release a sex video of a 19-year-old woman if she wouldn't have sex and pay him money.

Police arrested 28-year-old Bradley Williams of La Porte City on Tuesday. He was making an initial court appearance Wednesday in Waterloo.

The investigation started when a 19-year-old Bettendorf woman told police that someone on Facebook using the name "Lucas Phillips" contacted her last fall claiming to work for a modeling agency. The woman met the man in Cedar Rapids, where he took nude photos of her and they had consensual sex that was filmed without her knowledge.

The woman says she was extorted into having sex and paying him money in December after he threatened to put the images online.

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