ZCZC EL23 SUBS AND GUNS 572/26 FOST. SUBFACTS AND GUNFACTS WARNING (ALZ TIMES UTC). 1. DIVED SUBMARINE OPERATIONS IN PROGRESS: PORTSMOUTH APPROACHES - SAINT ALBANS HEAD TO SELSEY BILL. BETWEEN 080_00._*._081_0 AUG. FULL DETAILS IN HM COASTGUARD RESCUE CENTRES VHF AND MFCBEOADCASTS OR CONTACT NAVAL OPERATIONS PHONE (44) (0)1752 557550. 2. CANCEL SUBS AND GUNS 570/26 (EL22). NNNN