GREENVILLE, Miss. - A Mississippi teacher faces investigations after a video shows her dragging a student by the hair at Greenville High School.

The Delta Democrat-Times reports Kesha Williams posted the video on Facebook Thursday. A second video appears to show the teacher striking the student on the head with a cup.

The dragging video has been viewed by millions.

Williams tells the newspaper that her daughter, a Greenville sophomore, received videos recorded sometime after Sept. 21 of the actions.

Mississippi Department of Education spokeswoman Jean Cook says the state launched a misconduct investigation, which could lead to the teacher's license being suspended or revoked. Greenville school officials and police say they're also investigating.

The Southern Poverty Law Center says the video raises questions about whether violence is "normalized" at the school.