Involuntarily hospitalization but a celebrity

The rapper Ye formally known as Kanye West landed in Japan yesterday and is in and out of mania. For the past two months he has been writing a whole bunch of nasty rude things on social media and has even talked about wanting to end his life. Is there a way for him to get involuntarily hospitalize out there? He fled California because people were trying to get him to go to the hospital there. It's been almost two months straight and he is upsetting a lot of people I actually fear for his life.