A Florida sheriff has apologized for a tweet that said, “I support and stand by the First Amendment.”

Deputies in the Tampa Bay area were deployed to the Florida Keys this week to respond to a possible terrorist threat, which has prompted the sheriff to say he didn’t mean to incite violence.

“The use of the term ‘waterboarding’ in a public tweet was not intended as a call for violence,” Sheriff Robert Allen wrote on Facebook.

“I apologize to my fellow law enforcement officers who were impacted by this.

I also apologize to the countless others who were not at this location at the time.”

The sheriff’s office also announced Wednesday that it had launched an internal investigation, which includes “reopening our internal channels for those who might have been impacted by the tweet.”

The comments came as the Florida Department of Law Enforcement and the state’s governor issued statements in which they reaffirmed their support for law enforcement.