This is the shocking moment the floor suddenly collapsed at an air conditioning repair shop in Thailand.

Security footage shows the tiled ground buckling inside the four-storey commercial building in Pathum Thani province on January 24 afternoon.

Two men fled from the shop after they heard loud crackling sounds shortly before the floor caved in.

The shop owners claimed they had been hearing strange noises while walking on the floor days before the incident. The area was used as a repair shop where heavy pieces of equipment were stored.

No one was reported hurt and the building was not severely affected. However, the damage to the store is estimated to be at around 1 million THB (around 30,500 USD), the owner's sister said.