Leaders in the Monessen School District in Pennsylvania are investigating a racy assignment allegedly given to several middle school students.

According to the Valley Independent, the assignment consisted of a word search based on the novel "50 Shades of Grey."

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Parents at the school sent WPXI a photo of the word search that includes many sexually explicit words.

The district has not said who passed out the word search.

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Waymo autonomous vehicles operate across 65 square miles inside I-285 and have been involved in six incidents with Atlanta Public School buses since May. Waymo issued a recall because of their cars briefly stopping or slowing down before continuing forward while a bus was stopped and flashing its lights. (Courtesy of Atlanta Public Schools)

Credit: Courtesy of Atlanta Public Schools