SECURITE 281500 UTC AUG 2023 NAVAREA IX (.) 318/23 (.) SOUTHERN GULF (.) UAE (.) CHARTS BA 2443, 2889, 3178 AND 3179 2. OLD SPM SOUTH OF ZIRKUH ISLAND IN POSITION 24-51.60N, 053-05.41E REPORTED UNLIT 3. MARINERS CAUTIONED