Word is breaking on Twitter tonight that an explosion rocked the police headquarters building in Columbus, Ohio.

https://twitter.com/xxAshleyRose/status/382664512949592064

The building is being evacuated. No word yet on any injuries.

https://twitter.com/ryanbsaunders/status/382662975670079489

Twitchy will continue to monitor and update as news develops.

Update: No injuries so far, thank goodness.

Update: Homeland security officials are on the scene.

Update: The incident was reportedly related to a nearby construction project.