PRETORIA, South Africa (AP) — A South African judge has ruled that Oscar Pistorius will start a period of psychiatric evaluation at a state institution on Monday.

The presiding judge says Pistorius' murder trial will be postponed until June 30 while he is observed as an outpatient a psychiatric hospital in Pretoria.

Pistorius must go to the hospital at 9 a.m. every weekday and will be evaluated by a panel of four mental health experts. He can leave every day at 4 p.m. or when allowed by hospital authorities. The judge says Pistorius' period of observation will not be more than 30 days.

A psychiatrist had testified at Pistorius' trial that he had an anxiety disorder which may have contributed to him fatally shooting girlfriend Reeva Steenkamp last year.