A judge sent a woman who stalked film-maker Derek Yee Tung-sing to hospital for observation yesterday. Mr Justice Frank Stock ordered Coco Wong Kit-yee, also known as Joe Wong, to be detained under the Mental Health Ordinance during a closed-doors hearing over whether she had breached court orders to stop following the producer and director, sources said. The woman was escorted from the High Court by ambulance and police officers and did not put up a struggle. Mr Yee, who departed for Canada yesterday afternoon, was not in court when his fan was removed. The director had sought a motion for the committal of the woman, who allegedly ignored court orders not to follow him. Mr Justice Stock ordered her on August 17 not to contact or disturb Mr Yee, visit his Kowloon home in La Salle Road or go within 50 metres of it or go within 50 metres of the wine bars he invested in in Causeway Bay or his office in Tsim Sha Tsui. Mr Yee is best known for directing the hit Cantonese films C'est La Vie, Mon Cheri, Full Throttle and 'Till Death US Do Part. The judge has yet to decide whether there had been a contempt of court on the woman's part as she allegedly visited Mr Yee's home on several occasions since the order was made. Mr Justice Stock yesterday ordered the hearing to be heard in chambers, but declined to make an order to prohibit the press from reporting on the closed-door hearing. Mr Justice Stock adjourned the committal hearing indefinitely pending reports from the hospital.