A huge fire broke out at a 10-storey apartment building on Soi Narathiwat 18 on Sathorn road, trapping several people inside the blazing building.
The fire was first spotted on the third floor and quickly spread to upper floors.
Several fire engines arrived but faced difficulties in putting out the blaze which happened on high rise floors, and black smokes.
Several occupants were seen waving for help out of their windows on upper floors.
The fire happened at about 10.50 am and by 11.30 am it is still raging fiercely.
Initial report said one people died and many were trapped.
Police helicopters were called in to rescue as several people are now trapped on the deck.
Rescue workers said the seventh floor of the building collapsed due to heat.