Three young women on a Guides leadership training course were injured - two of them seriously - when an alcohol stove exploded yesterday during a cooking competition. Flames quickly spread to the clothing of one competitor, Lee Wing-wan, 25. Her two companions, Sham Wing-hang and Chan Suk-man, both 21, also suffered burns. About 40 women undergoing leadership training at the Hong Kong Girl Guides Association Recreation Centre in Yuen Long rushed to give the three first aid before police and firemen arrived. Ms Lee - who reportedly suffered burns to 30 to 40 per cent of her body, mainly to her face, torso and thighs - was in critical condition in the intensive-care unit at Tuen Mun Hospital. Ms Sham suffered burns to her head, neck and left hand. She was admitted in serious condition. Ms Chan, who burned her left hand and hair, was treated and later discharged. The leadership training course, which started on Saturday, was scheduled to end yesterday evening. The accident occurred at about 11.50am, when four tables were set up outside the centre for the cooking competition. The fire started when a member of the three-woman team used a cigarette lighter to set an alcohol stove alight. Flames shot out, setting Ms Lee's clothes alight. Guides officials at the scene declined to comment but said the Girl Guides Association and police would hold separate investigations into the cause of the incident.