The identification of cosmic objects emitting high energy neutrinos provides new insights about the Universe and its active sources. The existence of cosmic neutrinos has been proven by the IceCube collaboration, but the big question of which sources these neutrinos originate from remains largely unanswered. The KM3NeT detector for Astroparticle Research with Cosmics in the Abyss (ARCA), is currently being built in the Mediterranean Sea. It will have an instrumented volume of a cubic kilometre, and excel at identifying cosmic neutrino sources due to its unprecedented angular resolution (< 0.2 degree for muon neutrinos with E > 10 TeV). KM3NeT has a view of the sky complementary to IceCube, and is sensitive to neutrinos across a wide range of energies. Currently KM3NeT/ARCA is taking data with 8 detector lines. This contribution will present the first results of point source and extended source searches with KM3NeT/ARCA data. The analysed dataset refers to the detector in 6 lines configuration.