Results and prospects of the NA62 experiment at CERN

K+ → π+νν is one of the theoretically cleanest meson decay where to look for indirect effects of new physics complementary to LHC searches. The NA62 experiment at CERN SPS is designed to measure the branching ratio of this decay with 10% precision. NA62 started to take date with a good beam intensity in 2016. The analysis of the 5% of 2016 data acquired, in view of the final measurement, will be presented.