OKLAHOMA CITY - The Oklahoma Department of Public Safety is now closely monitoring the safety of educators and elected officials, after identifying outside protest groups not associated with the teachers' rally at the Capitol.

According to the department, some of these groups have been known to become violent during non-violent rallies. 

There have also been reports of threats made towards members of the Legislature, officials said. 

The main focus of the department is to provide a safe and secure environment for all attendees.