Nigeria's Federal Inland Revenue Service (FIRS) has sealed the offices of Kabo Air (QNK, Kano) over tax liabilities, reports This Day newspaper. The Nigerian passenger charter carrier is said to owe almost NGN150 million (USD475,000) for the assessment period 2004 to 2013.

"The company did not contest the liabilities," said Bukar Gana, head of the Kano region enforcement team, leading to the decision to seal up the airline's premises on Ashton Road, Kano State.

Kabo Air has two B747-200s, neither of which have seen service for some time. Kabo's B747-400 was most recently wet-leased to Ariana Afghan Airlines (FG, Kabul) for Hajj charter flights in August 2016.