"We will not tolerate any form of hate speech, any expression that supports hate speech, or any acts of subversion, whether in-person or on online platforms," the department said in a statement Friday evening.
Though the department did not specify the nature of the social media accounts, it reiterated that hate speech will not be tolerated.
"The trust of our community is our highest priority. We will not tolerate any breach of that trust from any member of our Department," Interim Police Chief Susan E. Manheimer said.
The investigation comes after the department denounced the events that took place at the U.S. Capitol earlier this week, calling the riots "a disgraceful assault on our democracy."