Jailers put accused sex trafficker Sean “Diddy” Combs on a “procedural” suicide watch, as the music mogul awaits trial on three felony counts tied to more than a decade of alleged abuse, a source said.

Combs has been in federal custody in New York City since Monday night and guards at the Metropolitan Detention Center are closely monitoring him in case the defendant attempts to harm himself, a source familiar with the situation told NBC News.

The source described this suicide watch as…