SECURITE 061500 UTC JUN 2023 NAVAREA IX (.) 237/23 (.) ARABIAN GULF (.) SAUDI ARABIA (PORT RA’S AL KHAIR) (.) CHARTS BA 2847, 2882 AND 3775 2. BUOY RAZ-21 IN POSITION 27-36.93N 049-16.20E REPORTED MISSING 3. MARINERS CAUTIONED