Former death row inmate Mumia Abu-Jamal has been hospitalized, but his lawyer says prison officials won't tell him why.

Attorney Bret Grote (GROH'-tee) said Monday that his client is in the critical care unit of a Pennsylvania hospital.

Abu-Jamal is a former Black Panther serving life in prison for the 1981 murder of white Philadelphia police Officer Daniel Faulkner. His conviction was upheld through years of appeals, but he has gained international support for his claim that he's the victim of a racist justice system.

Grote says neither he nor Abu-Jamal's brother, Keith Cook, have been allowed in to see him.

Prison officials won't comment on inmate medical conditions or hospitalizations. A spokesman for Pottsville's Schuylkill (SKOO'-kill) Medical Center says he had no information about Abu-Jamal.