Swedish government and mining officials have discovered a large network of very ancient chambers and tunnels -- many of them with smooth glass-like walls with strange inscriptions on them and obviously artificial in nature -- beneath the area of Kiruna, Sweden.
These chambers were NOT construction by any known surface miners!
Some of the old miners who worked in the Kiruna iron mine talked of this race of subterranean reptilian-humanoids who now live in much deeper caverns in fantastic hi-tech underground cities.
The reptiloids beneath Kiruna were/are much friendlier than those under the Archuleta Mesa north of Dulce, New Mexico, for instance, which are parasitic/vampirical creatures that see humans as a race to be exploited, manipulated, or even used as a food source!
A reptiloid female from this underground race, who can appear outwardly human, desires peace between her 'people' and ours, even though she admits that there are other reptilian species that do NOT want peace with humans.
She (Lacerta) did some taped interviews with an anonymous surface individual in December of 1999. This 'interview' has since spread like wildfire throughout the internet!
There are other sources who confirm that there are reptiloids in other parts of the world that are unfriendly to humans and others that are friendly towards humans, and that these two factions of reptiloids are at war with each other! (Go to this link and do a ctrl/f page-find for: Reptile battlecraft)