Dr. Dre is in the intensive care unit after suffering a brain aneurysm.
The rapper, 55, is hospitalized at Los Angeles' Cedars-Sinai Medical Center, TMZ reported Tuesday.
The musician was taken to the hospital by ambulance on Monday after suffering the aneurysm, according to the website.
Dre (born Andre Romelle Young) is in a stable and undergoing tests, the outlet reports.
Dre's rep did not immediately respond to PEOPLE's request for comment.