Most of the people attending President Trump’s Tulsa, Okla., campaign rally have opted not to wear face masks, going against guidance from public health officials and despite the recent spike in coronavirus cases in the state over the past few days.

Images from the rally show people filling the 19,000-plus seat BOK Center in Tulsa with a majority of attendees not wearing face masks.

Attending large, indoor gatherings without face coverings goes against several guidelines issued by the Centers for Disease Control and Prevention (CDC) and local public health officials.