South Carolina Department of Health and Environmental Control tweeted — and quickly deleted — a message early Wednesday evening calling President Donald J. Trump a “(expletive) tool.”

At 6:30 p.m., an hour after the original tweet and after questions starting pouring in on Twitter, the department tweeted an apology, saying it was accidental and under investigation.

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At 5:30 p.m. the department’s official account tweeted, “What a (expletive) tool the President of the United States is #ParklandStudentsSpeak” in reference to the recent school shootings in Florida.

The department was still investigating the tweet at 7:15 p.m., spokesman Tommy Crosby said Wednesday. An official statement will be put out once they reach a conclusion, he said.

Trump met with shooting victims and family members of shooting victims Wednesday afternoon and was scheduled to hold a town hall in the evening with Marjory Stoneman Douglas High School students.

The president promised to be “very strong on background checks” and listened to suggested solutions and feedback while pledging to take action at the town hall. He suggested he supported allowing some teachers and other school employees to carry concealed weapons to be ready for intruders and listened, giving handwritten notes saying “I hear you” to the families.

A handful of Twitter users replied to the original SCDHEC tweet or caught on just after it was deleted.

In November 2017, the Pentagon’s Twitter account “erroneously retweeted” a message including the sentiment that the president should resign, CBS News reported.