The Kansas City mayor received text messages from one of his constituents calling him a racial slur and containing a “subtle death threat” after he updated the requirements for facial coverings in the city, reports CBS News.

On Monday, Mayor Quinton Lucas took to Twitter to post screenshots of messages he received in which a person, who identified as white in previous messages, called him a “piece of s**t n***er.” The person questioned the new face mask mandate, claiming Lucas walked with “rioters” while not wearing a mask.

“You should swing from a tree, I’m not threatening it, but would love to see it,” one of the text messages read.

“Y’all… let’s do better,” Lucas urged in his tweet about the messages.