Kanye West was under observation at a Los Angeles area hospital late Monday after the remaining dates of his national tour were abruptly canceled, multiple authorities familiar with the case told NBC News.

The admission followed a week of bizarre incidents during which the provocative rapper publicly railed against fellow music stars Beyoncé and Jay Z and retroactively endorsed President-elect Donald Trump.

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A source familiar with the case told NBCNews.com that Los Angeles police responded to a medical welfare call about 1:20 p.m. (4:20 p.m. ET). No criminal activity was involved; the decision to hospitalize West was for his own health and safety, the sources said. See the full story at NBCNews.com

Earlier in the day, West canceled the remaining 2016 dates for his Saint Pablo tour, including his December 8 concert scheduled for Philips Arena in Atlanta.

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