Kanye West was hospitalized for a psychiatric evaluation on Monday. The news comes just hours after the rapper canceled his tour.

Yesterday afternoon(American time), Los Angeles police were called to make a welfare check on West. It’s not believed he was at his residence at the time, but being treated by a doctor for ongoing exhaustion when someone apparently decided more medical intervention was necessary. Paramedics arrived on the scene, and opted to transport West via ambulance to UCLA Medical Center, allegedly against his will.

The measure was reportedly done for his own safety and out of an abundance of caution, and he is now under observation. Wife Kim Kardashian was not present at the time. On Monday morning, she traveled to New York, where she was expected to make her first post-robbery appearance tonight at the Angel Ball, a charity gala, where her late father was to be honored. Due to West’s crisis, however, Kardashian ended up skipping the event.

Concern for West increased in recent days when he ranted in concert about the presidential election, as well as celebrity friends Beyonce and Jay Z. He controversially expressed support for Donald Trump, and was criticized for not just getting political, but doing more talking than performing. Then, on Sunday, West backed out of a make-up show just hours before it was to start.