The blaze broke out in a function room at the 221-room Grand Park Avenue Hotel off the Sukhumvit Road in the Thai capital on Thursday evening, and a female tourist died of suffocation the following day.
A male tourist, who was taken into intensive care, died early Saturday, according to a senior nurse at the Kluay Nam Thai hospital.
The Bangkok Metropolitan Administration released a statement saying both of the deceased were Russian, while most of the wounded had already been discharged.
AFP