A researcher at the Massachusetts Institute of Technology was arrested after police say the 30-year-old man tried to arrange a meeting to have sex with a woman and her two daughters -- one he believed was 12 years old. 

Yaron Segal met the woman, who was working as an undercover federal agent, in an Internet chat room, Fox affiliate WFXT-TV reported. 

Segal was arrested at an airport in Colorado after he allegedly flew there to meet the woman and her daughters, whom he believed were 16 and 12, according to authorities.

Segal, an Israeli citizen, was busted by agents with the Department of Homeland Security and charged with felonies, including "traveling with intent to engage in a sexual act with a person under 12," according to The Smoking Gun website.

The website reported that Segal first caught the attention of authorities in February when the female undercover agent found him in online chat rooms with titles such as “childslavesex” and "ChildRapeTortureBrutality.”

According to a federal complaint, Segal made clear he wanted to have sex with the woman and her two daughters. "A majority of the chats were very sexually explicit," the agent reported. 

Segal began working at MIT last year after completing his doctorate at Yale University’s applied physics department, according to the website.