"groundless"

from the BBC about CdI:

The UN team was attacked in the capital, Yamoussoukro.

They were looking into reports that Belarus had provided attack helicopters for supporters of Laurent Gbagbo, who refuses to give up the presidency.

Belarus has denied the allegations as "groundless".

Let's just say I'd go with the unconfirmed reports over a Lukashenko regime denial. Looks like the UNSC sees it that way, too. Note the Libyan side issue mentioned in this article as well. There is a history of such behaviour.