Travis Scott is warning fans to "be safe" after a stampede broke out at his Astroworld Festival in Houston, leaving at least three fans injured on Saturday.

Per KTRK, three people were transported to a local hospital with minor leg injuries after they were trampled at the rapper's show.

Scott, 28, shared a video of the scene on his Instagram page, noting fans should "be safe rage hard."

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Per KHOU, fans attempted to break through the gates with bolt cutters. Houston police tweeted -- and then deleted -- that they would be "bringing additional officers" as the festival’s "promoters did not plan sufficiently for the large crowds and understaffed the event."

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According to Billboard, more than 50,000 people had tickets to attend the event.