GEORGE TOWN: Drivers caught ferrying passengers illegally at Penang International Airport often claimed they were picking up friends or acquaintances, but this did not deter Road Transport Department (RTD) enforcement action.

The department inspected 12 vehicles during an operation that began at 8am, issuing six notices involving three vehicles found carrying passengers without valid permits.

Penang RTD director Zulkifly Ismail said the operation was conducted following intelligence gathering and public complaints about illegal taxi activities at tourist spots and major entry points in Penang.

"Among the excuses given by the drivers was that they were there to pick up friends or acquaintances.