It was identified as Cimex spp., possibly, the common bedbug, Cimex lectularius, or the tropical bedbug C. hemipterus. It is more likely the latter.

There is excellent information at: http://medent.usyd.edu.au/bedbug/ and also http://www.bedbug.org.au/

The hotel will have to undergo an investigation to see how widespread the infestation is and then engage a pest control company to treat affected rooms – or by thorough spraying with permethrin. This is a difficult pest to control because of insecticide resistance, its cryptic habits and ease of spread with humans traveling internationally. It is spreading rapidly worldwide.