This work reports the discovery of three new globular clusters ( GCs ) towards the Galactic bulge - Camargo 1107 , 1108 , and 1109 .
The discovery was made using the WISE , 2MASS , VVV , and Gaia-DR2 photometry .
The new findings are old ( 12.0 - 13.5 Gyr ) and metal-poor GCs ( [ Fe / H ] < -1.5 dex ) located in the bulge area close to the Milky Way ( MW ) mid-plane .
Although the old ages and low metallicities suggest that the newly discovered GCs are likely associated with the inner halo the possibility of these clusters being part of a primordial bulge GC subpopulation can not be ruled out .
Camargo 1107 , for instance , presents a metallicity of [ Fe / H ] = -2.2 \pm 0.4 dex and an age of 13.5 \pm 2 Gyr , which may suggest that this cluster formed just after the Big Bang in the very early Universe .
The discovery of GCs such as the new findings is crucial to built a coherent picture of the inner Galaxy .
It is likely that at least a few more dozens of GCs are still to be discovered in the bulge .