PORTLAND, Ore. — Oregon Health & Science University say some protesters at are affecting its helipad and emergency flights.

On Saturday, OHSU shared a photo of a flyer that's entitled: "You're invited: LASER TAG!"

"Every night for weeks[,] we are forced to listen to the threatening rhythm of helicopter blades as the federal regime spies on us," it reads, in part, telling people to gather at public places on Saturday night to "fight back" by "unleash[ing] your beam at the cop copter."

Credit: Oregon Health & Science University

Due to that planned event, OHSU said, several air ambulance vendors will not land at the hospital helipad Saturday night. Instead, their helicopters will land at other airports, and patients will then be transported to OHSU's hospital via ambulance, which could ta

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