A Pennsylvania teenager accused earlier of trying to assist the Islamic State group has pleaded not guilty to accusations he tweeted out the names and addresses of military personnel with threats of violence.

Nineteen-year-old Jalil Aziz pleaded not guilty Tuesday to federal charges of solicitation to commit a crime of violence and transmitting a communication containing a threat to injure.

Assistant federal public defender Thomas Thornton calls Aziz "a kid who made mistakes." He says he doesn't believe Aziz is a threat.

Thornton has withdrawn a request Aziz be released from Dauphin County Prison and placed under house arrest with his parents.

Aziz pleaded not guilty in December to trying to help a group designated by the U.S. government as a foreign terrorist organization.