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The number of supernovae known to be connected with long-duration gamma-raybursts is increasing and the link between these events is no longer exclusivelyfound at low redshift ($z \lesssim 0.3$) but is well established also at largerdistances. We present a new case of such a liaison at $z = 0.33$ betweenGRB\,171010A and SN\,2017htp. It is the second closest GRB with an associatedsupernova of only three events detected by Fermi-LAT. The supernova is one ofthe few higher redshift cases where spectroscopic observations were possibleand shows spectral similarities with the well-studied SN\,1998bw, havingproduced a similar Ni mass ($M_{\rm Ni}=0.33\pm0.02 ~\rm{M_{\odot}}$) withslightly lower ejected mass ($M_{\rm ej}=4.1\pm0.7~\rm{M_{\odot}}$) and kineticenergy ($E_{\rm K} = 8.1\pm2.5 \times 10^{51} ~\rm{erg}$). The host-galaxy isbigger in size than typical GRB host galaxies, but the analysis of the regionhosting the GRB revealed spectral properties typically observed in GRB hostsand showed that the progenitor of this event was located in a very bright HIIregion of its face-on host galaxy, at a projected distance of $\sim$ 10 kpcfrom its galactic centre. The star-formation rate (SFR$_{GRB} \sim$ 0.2M$_{\odot}$~yr$^{-1}$) and metallicity (12 + log(O/H) $\sim 8.15 \pm 0.10$) ofthe GRB star-forming region are consistent with those of the host galaxies ofpreviously studied GRB-SN systems.

GRB171010A / SN2017htp: a GRB-SN at z=0.33