At least three people were killed in a fire in Taipei karaoke bar on Sunday morning, which left 50 others in hospital. Apart from those declared dead, four other people were in a critical condition and were being treated in a local hospital, the official CNA news agency said. The fire broke out between 10 and 11am on the fifth floor of a 14-storey building on Linsen North Road in the Taiwanese capital. The bar occupied the first nine floors. Pictures from the scene showed thick smoke emerging from the building. Customers trapped on the upper floors were seen calling for help with some even standing on window sills in panic. Firefighters used aerial ladders to rescue the trapped people from the upper storey windows. The Taipei city fire department said it dispatched 43 fire engines and 17 ambulances to the scene. The fire was extinguished at about 11.30am and the search for more survivors was continuing, the department said. The cause of the blaze was so far unknown and was under investigation, the department said.