MACRO as a Telescope for Neutrino Astronomy

We use a sample of 990 upward-going muons, induced primarily by atmospheric neutrinos, to search for neutrinos of astrophysical origin. No evidence has been found using the event direction information. Flux 10 limits of the order of ,15 cm,2 s,1 are imposed on current models for candidate point-sources. A spacetime correlation search has been undertaken between 2328 BATSE gamma ray bursts (GRBs) and MACRO upward-going muons.