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Results of the search for $\sim (10^{16} - 10^{17.5})$ eV primary cosmic-rayphotons with the data of the Moscow State University (MSU) Extensive Air Shower(EAS) array are reported. The full-scale reanalysis of the data with modernsimulations of the installation does not confirm previous indications of theexcess of gamma-ray candidate events. Upper limits on the correspondinggamma-ray flux are presented. The limits are the most stringent published onesat energies $\sim 10^{17}$ eV.

Constraints on the flux of $\sim (10^{16} - 10^{17.5})$ eV cosmic photons from the EAS-MSU muon data