Washington ? The FBI is warning police across the country that an anti-government group’s call to remove governors from office could provoke violence.

The group called the Guardians of the free Republics wants to “restore America” by peacefully dismantling parts of the government, according to its Web site. It sent letters to governors demanding they leave office or be removed.

Investigators do not see threats of violence in the group’s message, but fear the broad call for removal of top state officials could lead others to act out violently. At least two states beefed up security in response.

As of Wednesday, more than 30 governors had received letters saying if they don’t leave office within three days they will be removed.

The FBI expects all 50 governors will eventually receive such letters.