Rochester-area leaders and law enforcement are calling on TikTok’s CEO to address a recent rise in crime that officials have attributed to viral videos on their platform.

They say social media trends like the so-called Kia challenge have contributed to more than 775 car thefts in Rochester and more than 900 outside the city in Monroe County.

Congressman Joe Morelle, Monroe County Sheriff Todd Baxter and Rochester Police Department Chief David Smith are among those calling on TikTok CEO Shou Zi Chew to moderate and remove potentially dangerous content on the platform more effectively.

“Law enforcement is already in desperate need of resources to combat an epidemic of gun violence in our communities, and the spread of this dangerous content on your platform has exacerbated the problem,” Morelle, Baxter and Smith wrote in a letter to TikTok CEO Chew. “When these thefts occur, law enforcement resources are not only diverted to address the thefts themselves, but perpetrators of these crimes often use the stolen vehicles to commit additional crimes as well. Members of our community have previously written you to express concern over TikTok challenges that encourage violence in our schools, and TikTok’s inability to properly police its own platform in this case has yet again left our community vulnerable.”

Rochester Mayor Malik Evans and Monroe County Executive Adam Bello also voiced their concerns, with Evans stating that “social media companies like TikTok have a responsibility to ensure that their content does not negatively impact public safety.”

“It is long past time for the company to enforce its own guidelines and stop promoting reckless content that glorifies crime and violence and gives kids step-by-step instructions on how to steal cars,” Bello said in part.

The full letter to TikTok’s CEO can be found below: