  We derived elemental abundances in 27 Cepheids, the great majority situated
within a zone of Galactocentric distances ranging from 5 to 7 kpc. One star of
our sample, SU Sct, has a Galactocentric distance of about 3 kpc, and thus
falls in a poorly investigated region of the inner thin disc. Our new results,
combined with data on abundances in the very central part of our Galaxy taken
from literature, show that iron, magnesium, silicon, sulfur, calcium and
titanium LTE abundance radial distributions, as well as NLTE distribution of
oxygen reveal a plateau-like structure or even positive abundance gradient in
the region extending from the Galactic center to about 5 kpc.
