Twitter's statement linked the suspensions to the breach of the U.S. Capitol building last week.
"We've been clear that we will take strong enforcement action on behavior that has the potential to lead to offline harm. Given the violent events in Washington, D.C., and increased risk of harm, we began permanently suspending thousands of accounts that were primarily dedicated to sharing QAnon content on Friday afternoon," the post reads, in part.
The post also shares that the suspended accounts "were engaged in sharing harmful QAnon-associated content at scale and were primarily dedicated to the propagation of this conspiracy theory across the service."
A primary message of QAnon is that there is a secret ring of child sex traffickers and predators, which includes Hollywood personalities, Democrat officials, and other powerful people. QAnon also says President Trump has been fighting against these people.