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We derived elemental abundances in 27 Cepheids, the great majority situatedwithin a zone of Galactocentric distances ranging from 5 to 7 kpc. One star ofour sample, SU Sct, has a Galactocentric distance of about 3 kpc, and thusfalls 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 takenfrom literature, show that iron, magnesium, silicon, sulfur, calcium andtitanium LTE abundance radial distributions, as well as NLTE distribution ofoxygen reveal a plateau-like structure or even positive abundance gradient inthe region extending from the Galactic center to about 5 kpc.

Oxygen, {\alpha}-element and iron abundance distributions in the inner part of the Galactic thin disc