A collapse of scaffolding and display screens at “Star Wars” director George Lucas’ Skywalker Ranch in Northern California left five men injured, one seriously, on Monday.

The incident happened during setup Monday morning for an event at Summit Skywalker Ranch in Nicasio, Marin County, NBC Bay Area reported.

One patient suffered a head injury and was taken to the hospital in “very serious condition,” the outlet reported.

Another became trapped under LCD screens at the site, forcing emergency crews to use airbags to lift the collapsed structure. Three were of the men were taken to local hospitals.

The Marin County Fire Department, San Rafael Fire Department and the Novato Fire Department all responded to the scene.

The cause of the collapse is under investigation.

The sprawling property north of San Francisco “is the the pastoral home to Lucasfilm’s celebrated sound design, mixing and audio post-production facility, Skywalker Sound,” according to the ranch’s website.

“Skywalker Sound occupies the 153,000-square-foot Technical Building, which features a world-class scoring stage, six feature mix stages, 15 sound design suites, 50 editing suites, an ADR stage, two Foley stages, and the 300-seat Stag Theater. The property also includes the iconic Main House and the beautiful Lake Ewok.”

The ranch did not respond to a request for comment from the California Post.