The National Disaster Response Force (NDRF), which is engaged in the search and rescue operation at the hoarding collapse site in Mumbai’s Ghatkopar, on Wednesday said the number of casualties going up in the tragedy cannot be ruled out as the chances of finding survivors are slim.

Two teams of the NDRF along with the fire brigade and police have been working relentlessly for the last two days to rescue the people trapped under the billboard that collapsed on a petrol pump in the Chheda Nagar area of Ghatkopar on Monday evening.