ZCZC LD05 092000 UTC APR 26 ARKHANGELSK RADIO URGENT MESSAGE 05 PAN PAN PAN AREA THE SEAPORT OF ARKANGELSK TEMPORARILY DANGEROUS TO SHIPPING DUE TO POSSIBILITY ATTACK OF COMBAT UNMANNENED AERIAL VEHICLES CAUTION ADVISED KEEP SHARP LOOKOUT AND REPORT TO RCC ARKHANGELSK RADIO 1 ON VHF CH16 AND TO HARBOR MASTER ARKHANGELSK RADIO 5 ON VHF CH 14 MF: 2182 KHZ INM-C: 583492509110 TEL: +7(8182)208921 MRSC ARKHANGELSK NNNN