MIAMI — Rapper Rick Ross was reportedly hospitalized in Alabama on Friday night after suffering a medical incident aboard a Memphis, Tenn. plane, the second time in six hours that a plane carrying the performer had to be diverted because of concerns about his health.

Ross was scheduled to appear at a University of Memphis basketball event on Friday night, and had even tweeted “Memphis here I come” after a medical scare hours earlier had prompted a Delta Air Lines plane to return to Florida so that Ross could be taken to the hospital.

But the 34-year-old Ross never made his scheduled appearance at an event called “Memphis Madness” on Friday night.

Memphis coach Josh Pastner told the crowd on Friday evening that a private jet carrying Ross made an unscheduled landing in Birmingham after the singer had another medical problem.

“On his way to Memphis,” Pastner said, “he had to make another emergency landing, in Birmingham. He got really sick again, and they had to rush him to the emergency room.” Ross suffered a second medical seizure and had been hospitalized.