The Nigeria Sports Commission (NSC) has given the Nigerian Football Federation (NFF) 48 hours to explain why national Coach Stephen Keshi is owed seven months' salary.
Keshi, who is preparing Nigeria for November's World Cup play-off second leg against Ethiopia, told BBC Sport he has not been paid since he oversaw the Super Eagles to the Africa Cup of Nations title in February.
“NSC director general Elegbeleye told KickOffNigeria, that it is unacceptable to owed national coach, and they have queried the NFF, it is a national embarrassment, he said”
The NFF, which is in in serious financial difficulty, also owes money to assistant coach Daniel Amokachi and goalkeeper trainer Ike Shorunmu.
The football authority, which receives its funding from the sports ministry, has acknowledged the debts owed to the coaches but says they will have to be patient.
It is not the first time Nigerian coaches have not been paid.
Christian Chukwu, Shaibu Amodu, Samson Siasia, Austin Eguavoen, John Obuh and Eucharia Uche have all previously complained about outstanding salaries in the recent past.
Nigeria will face Ethiopia in Calabar on 16 November and are favourites to progress to next year's tournament in Brazil, having won the first leg 2-1.