Nigeria, June 20 -- The investigation into the 333-kilogram cocaine scandal linked to Roberts International Airport (RIA) took another significant turn Saturday following the reported seizure of a taxi allegedly used to transport the narcotics and the arrest of its operator.

The development, announced by investigators affiliated with Verity Online News, is being viewed as a potentially important breakthrough in efforts to unravel the network believed to have coordinated the movement of large quantities of cocaine through Liberia's main international gateway.

According to reports, the vehicle, identified as a commercial taxi bearing license plate number 10609, was allegedly used on multiple occasions to transport cocaine destined for Ro...