PETALING JAYA: Former prime minister Tun Dr Mahathir Mohamad has been admitted to the Institut Jantung Negara (IJN) for a medical check-up.

       In a statement, IJN said Dr Mahathir arrived there at 7pm Thursday (Dec 16).

       It said the former premier will undergo a full medical check-up and further observation, adding that he is expected to be in IJN for the next few days.