Dancehall entertainer Ninjaman appears to have suffered a mild heart attack on Friday, when he reported feeling ill during his murder trial.
Doctors reportedly conducted an echocardiogram (ECG) earlier this week and more tests are to be conducted.
Ninjaman has reportedly given instructions to his attorneys for his murder trial to continue while he is in hospital.
Ninjaman, whose real name is Desmond Ballentine, was taken back into police custody on October 17 as his murder trial started in the Gun Court.
He is charged along with his son, Janeil, and another man, Dennis Clayton, for the fatal shooting of Ricardo Johnson that same year in 2009.