A woman who attempted to approach Perak ruler Sultan Nazrin Shah during the state-level National Day parade has been referred to Hospital Bahagia Ulu Kinta, Tanjung Rambutan, for observation.

Perak police chief Noor Hisam Nordin said the 41-year-old suspect was sent to the hospital after her remand expired today, under the provisions of the Mental Health Act 2001.