ZCZC JA16 031433 UTC JUL 26 VARNA RADIO NW 448/26 BULGARIAN BLACK SEA COAST. NAVY TOWING OPERATIONS FM VARNA PORT TO BOURGAS PORT FM 0400 TO 700 UTC ON 07 AND 08.07.2026. MARINERS TO KEEP A SAFE DISTANCE OF 5 CABLES FM TOWED WARSHIP CONFIGURATIONS. NNNN