In a statement issued to AllHipHop, Rick Ross announced today that he's cancelling the rest of his MMG Tour dates and that refunds will be given today.
It's still not sure what caused the cancellation but it could be due to death threats for concerts in Charlotte and Greensboro, North Carolina.

“I want to apologize to all of my fans who I missed performing for due to the cancellations and want to let them know that I will get back to their cities. I enjoyed my experience with my little bros Wale and Meek Mill and I’m ready to get back in the studio to make good music.”