The problem of in-flight gangs preying on passengers into Hong Kong appears to be increasing, with $4.5m stolen on board planes so far this year.
The South China Morning Post reported one victim was robbed of US$30,000 just last week on board an overnight Etihad flight into Hong Kong.
The man said the cash was in an overhead locker in economy class and warned other travellers to be vigilant.
The South China Morning Post reported in-flight thefts were identified as a problem in 2012.
And it appears it is a problem that is continuing to grow, with police figures showing HK$4.45million had been stolen on board flights by the end of the September this year – more than the total for the two previous years combined.
The gangs are understood to often work in pairs at night when passengers are sleeing – with one thief going through bags while the other keeps an eye out for flight attendants.