The Governor of Kentucky was speechless after learning one of his state's 39 new COVID-19 cases became infected after attending a 'coronavirus party'.
Kentucky, in the United States' south-east, is now up to 163 positive cases of coronavirus. Four people have already died in the state.
Governor Andy Beshear, who gave an official update on Kentucky's coronavirus situation on Tuesday (local time), interrupted his usual announcement to implore residents not to attend coronavirus parties.
"This is one that makes me mad... and it should make you mad. No more of these," he said.
"Anyone who goes to something like this may think that they're indestructible, but it's someone else's loved one that they are going to hurt.
"We are battling for the lives of our parents and our grandparents. Don't be so callous as to intentionally go to something and expose yourself to something that could kill other people."
Gov Beshear said the guilty party was one of a group of people in their 20s who had flaunted their flouting of new coronavirus isolation rules on social media.
The United States has suffered more than most countries in the coronavirus crisis. As of Tuesday (local time), the nation had 44,183 confirmed cases and suffered 544 deaths from the disease, according to the Center for Diseases Control and Prevention.
US President Donald Trump says he hopes the country is "opened up and raring to go by Easter", a holiday that's just over two weeks away.
That proclamation comes despite most health experts around the world saying the coronavirus pandemic is likely to last many months at least.