The Crown Princess gave birth to a girl Saturday afternoon, the first baby in her 8 1/2-year marriage to the Crown Prince.

The 37-year-old Crown Princess gave birth to the baby, who weighs 3,102 grams and is 49.6 cm tall, at 2:43 p.m., Hirofumi Oka, head of the General Affairs Division of the Imperial Household Agency, told a news conference at 3 p.m.

Both mother and baby are in good health, and will be able to leave the Hospital of the Imperial Household in one or two weeks, officials said. They quoted the Crown Prince as saying, "I am delighted and relieved to hear that they are both healthy . . . I plan to look after the child wishing for her happiness."