Customs officials at Mumbai international airport confiscated huge quantities of gold on Wednesday, by intercepting passengers coming in from Bangkok and the Middle East. Officials suspect an insider’s involvement in the biggest haul of the night.

In the first seizure, officials of the Air Intelligence Unit, a unit of Customs, intercepted A M Altaf, who had arrived from Dubai by flight 9W-537. They found 50 gold bars weighing 5.83 kg, and worth R1.54 crore. The AIU caught Altaf when he was keeping the bag containing the smuggled gold near the Air India baggage service counter. The bag was to be taken out by an airport staffer.