OCNL GPS SGL INTRP HAVE BEEN REPORTED AROUND LAHORE
IN 100NM RADIUS, FM PSN OPRK TO MERUN IN SECT 'S' OF
LAHORE ACC AND ALSO IN SOME PORTIONS OF KARACHI FIR.
ALL PILOTS PROMPTLY REPORT TO AIR TRAFFIC CONTROL (ATC)
OF SUCH INTRP WITH APPROPRIATE DETAILS. IN THE EVENT,
TAKE NECESSARY MEASURES FOR SAFE AND EFFICIENT
CONTINUATION OF NAV AND IN CASE OF NAVIGATIONAL
DIFFICULTY, NOTIFY ATC FOR ASSISTANCE