The Inter-Parliamentary Union (IPU) says will take steps to address the concerns raised by Natasha Akpoti-Uduaghan, senator representing Kogi central in the national assembly.
The IPU is a global organisation of national parliaments. It promotes peace, democracy and sustainable development among nations through diplomacy and dialogue.
Akpoti-Uduaghan presented her case at an IPU meeting held at the United Nations headquarters in New York on Tuesday.
Tulia Ackson, IPU president, acknowledged the concerns raised by Akpoti-Uduaghan and assured that the organisation would investigate the matter thoroughly.
She said the IPU would listen to both sides of the issue before taking any necessary steps.
Ackson recognised that another Nigerian delegate, Kafilat Ogbara, a member of the house of representatives, had requested to speak but was unable to due to time constraints.