The United Nations (UN) is investigating allegations of sexual misconduct of senior staffers in Fiji.

A number of allegations were made about two staff members last week, a UN World Food Programme (WFP) spokesperson confirmed to Newshub on Sunday.

"As a result, WFP has decided to investigate formally."

The spokesperson said they won't be commenting further at this stage.

An anonymous UN worker told Stuff the allegations against the two staff members surfaced last week and both men had been suspended pending a formal investigation.

The allegations had been made by up to three female staff members at the WFP in Suva, an office with around 15 people in it.

The UN spokesperson would not confirm to Newshub if the staff members had been suspended in wake of the allegations and investigation.

She also would not comment on any details about the allegations.

The WFP is the food aid arm of the UN and one of several operations in Fiji.

Newshub.