Since 2007 the ANTARES high energy neutrino detector, installed in the depths of the Mediter- ranean Sea, is taking data. It is located 40 km off the French coast instrumenting a volume of about 0.01 cubic kilometers. The main aim of the ANTARES neutrino telescope is the search of astrophysical neutrinos as a diffuse flux or coming from astrophysical sources. ANTARES can observe in real time neutrinos correlated in space and time with other cosmic probes (multi- messenger approach) providing valuable informations from the Northern sky.
With the aim to enlarge the effective areas for the detection of high energy neutrinos and also to give valuable responses in the neutrino physics domain, the KM3NeT collaboration is construct- ing two detectors in the Mediterranean Sea: KM3NeT/ARCA mainly devoted to the discovery and observation of neutrinos from Active Galactic Nuclei and Galactic sources and KM3NeT/ORCA devoted to the study of the fundamental properties of the neutrino.
In this work the main recent results achieved by the ANTARES collaboration and the KM3NeT perspectives as well the first results from the deployed KM3NeT Detection Units will be reported.