Nigeria manager Stephen Keshi told reporters: "We are not part of this, we do not have interests in this. We are here to play football and that's it.
"If they want to investigate it whenever they want, that's their problem. We don't know anything about this stuff."
More top news
Cool weekend ahead but looking dry for many with sunny spells.
Firefighters have warned residents in London that an ongoing blaze could spark the explosion of a gas cylinder.
From church bells to pageants on the Thames, festivities are prepared for the moment the Queen overtakes Victoria.