Inclusive K_s~0K_s~0 production in deep inelastic ep scattering at HERA has been studied with the ZEUS detector using an integrated luminosity of 120 pb~(–1). Two states are observed at masses of 1537_(-8)~(+9) MeV and 1726 ± 7 MeV, as well as an enhancement around 1300 MeV. The state at 1537 MeV is consistent with the well established f'_2(1525). The state at 1726 MeV may be the glueball candidate f_0(1710). However, it's width of 38_(-14)~(+20) MeV is narrower than the PDG value of 125 ± 10 MeV for the f_0(1710).
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