The region containing the galactic source Sco X‐1 has been observed on May 17, 1989 in the energy range 15–160 keV. The measurement was performed with the balloon borne experiment ‘‘POKER’’ based on an array of three high pressure Multiwire Proportional Counters (MWPC) with energy resolution of 10% at 120 keV. The total sensitive area was 8,000 cm2and the experiment was passively collimated with a copper hexagonal collimator with 1.9 degree FWHM field of view. The preliminary data analysis confirmed the detection of the source at energies up to 60 keV.