TOKYO (AFP) - Japan's Emperor Akihito was admitted to hospital late Sunday suffering from fever and bronchitis, the royal palace said.The 77-year-old emperor "will be hospitalised from tonight because he has had a persistent fever and begun to show more concerning symptoms of bronchitis," a spokesman for the imperial household agency said.Television footage later showed the emperor arriving by car at the University of Tokyo Hospital accompanied by Empress Michiko.The emperor will be treated at the hospital only days after his granddaughter Aiko was hospitalised there for pneumonia.