HIGHLANDS COUNTY, Fla. (WFLA) – A Sebring man threatened to shoot up a Publix because not enough people were wearing masks, the Highlands County Sheriff’s Office said on Facebook.

According to the post, Robert Kovner took to social media to express his frustration over the lack of mask-wearers at an area Publix and threatened a mass shooting.

“We realize these are stressful times, but there is no excuse for making threats like this. It’s not a joke. It’s not just a bad day. It’s a crime. We will ALWAYS take them seriously and you will go to jail,” the sheriff’s office said on Facebook.

Kovner, 62, was arrested for making a written threat of a mass shooting, which is a second-degree felony. He is being held at a Highlands County jail in lieu of $30,000 bond.