  Neutrino detectors participate in the indirect search for the fundamental
constituents of dark matter (DM) in form of weakly interacting massive
particles (WIMPs). In WIMP scenarios, candidate DM particles can
pair-annihilate into Standard Model products, yielding considerable fluxes of
high-energy neutrinos. A detector like ANTARES, located in the Northern
Hemisphere, is able to perform a competitive search looking towards the
Galactic Centre, where a high density of dark matter is thought to accumulate.
Both this directional information and the spectral features of annihilating DM
pairs are entered into an unbinned likelihood method to scan the data set in
search for DM-like signals in ANTARES data. Results obtained upon unblinding 11
years of data are presented. A non-observation of dark matter is converted into
limits on the velocity-averaged cross section for WIMP pair annihilation.
