Thieves drilled through the walls on the sixth floor of a Bangkok hotel in order to steal valuables from six of seven companies located there early yesterday.
After a report of the heist at Swissotel Le Concorde Hotel on Ratchadapisek Road, officers from Huai Kwang Police Station found the thieves had drilled holes on all connecting walls and ransacked the offices. Police also found a scrap of a brown coat in one of the holes.
The building's security guard said he found nothing suspicious during his midnight patrol of the sixth floor and did not know of the incident until office workers alerted him in the morning.
CCTV captured the image of a man in a ski mask turning the security camera away at around 11.29pm on Monday. Police suspect the heist might involve an insider because the thieves seemed to know the layout and knew the location of the safe deposit box, but failed to open it.