HARARE, Zimbabwe (AP) _ A white doctor accused of experimenting on poor black patients was found guilty today of professional negligence. The case created friction between affluent whites and poor blacks in Zimbabwe, which once prided itself on its racial harmony.

Judge Paddington Garwe ruled Dr. Richard McGown guilty on charges of culpable homicide relating in the deaths of two children. The charges carry a maximum sentence of life imprisonment.

Garwe cleared McGown in the deaths of three other people and adjourned the Harare High Court until Wednesday to hear mitigating arguments before passing sentence.

McGown, 57, bowed his head and showed no emotion as the guilty verdict was read. He was allowed to leave the court on bail.

Garwe ruled McGown gave unusually high dosages of morphine when administering anaesthetics to five patients who died in Harare from 1986 to 1992.

But the court ruled that his negligence caused the deaths only of a 10-year old black Kenyan girl and a 20-month-old baby of Asian parents.

Kenyan lawyer Charles Khaminwa, father of the 10-year-old, said he would appeal the verdict.

He said state prosecutors failed to explain why they dropped charges that McGown carried out experiments, or clinical trials, on patients.

``This is a tremendous miscarriage of justice,'' Khaminwa said. ``None of the aggrieved parents are satisfied.''

McGown denied experimenting on black patients.

The case created racial tensions in the nation of 100,000 whites and 10 million blacks.

Students had threatened to attack whites in the streets and ``amputate'' them if McGown were acquitted.