UPDATE: TMZ has now confirmed that Kimbo Slice is dead at 42. They are also working on finding out what the cause of death was for Kimbo.

While TMZ just posted that Kimbo Slice went to the hospital and the situation was “dire”, multiple sources are claiming that Kimbo has in fact died at the age of 42 from heart failure.

Kimbo’s training partner, Tyler Cook, posted on Facebook that he was told by Kimbo’s family that he had passed away of heart failure.

Also, Kimbo’s MMA team, American Top Team, confirmed that news as well in the following tweet:

Current WWE Smackdown color commentator Mauro Ranallo has also posted that Slice has passed away on Twitter: