A Pennsylvania mom is accused of killing her son and sending video of his dead body to the 17-month-old’s father, according to authorities.

Christian Clark, 21, of McKeesport, Pa., was arrested and is being held without bond, the Pittsburgh Post-Gazette reports.

According to police, Clark was upset with the boy’s father, Andre Price Jr., because she thought he was seeing another woman. Over several hours on Tuesday night, Clark sent the man text messages, pictures and videos threatening to harm her son and young daughter.

“She was sending [messages] before the act, at the time of the act and following the act,” Allegheny County Police Superintendent Coleman McDonough told the Post.

Clark sent photos of the children face down on a bed, and later a video where she picked the unresponsive 17-month-old up by his arm and dropped him back on the bed.

“First of all she is clearly fine, because watch, see she is not dead,” Clark said in one of the videos, the Post reported. “Him on the other hand, he doesn’t budge. So you might want to call the ambulance.”

Clark later called an ambulance, and the baby was pronounced dead at the hospital, the Post reported