An American, who threatened her Taylor Swift on social media, was arrested before her first concert in Germany. The alleged harasser, whose identity has not been released, was “taken into custody at the venue’s entry checkpoint prior to the concert,” according to USA Today.

According to police, the man threatened both the artist and her boyfriend, Travis Kelce, who attended her first concert at the Veltins Arena in Germany. As a result, he will remain in custody until Saturday. The AP reported that event organizers notified authorities of the alleged stalker’s disturbing online behavior.

The German police reported that the Swift there was no danger or 60,000 people present at the venue. The pop star will remain in Germany until July 28 for two more concerts in Hamburg and two more in Munich. In August, he will complete the European leg of the Eras Tour, with five nights in London. He will take a month off for a month, just before showing up in Florida and Louisiana.

View this post on Instagram

A post shared by Taylor Swift (@taylorswift)