( CNN ) -- State and federal authorities are investigating the apparent double homicide of a U.S. Coast Guard member and a civilian shot dead Thursday on an island off Alaska 's coast . It 's possible that the shooter , or shooters , remain at large , according to a Coast Guard statement . `` We 're treating this as a double homicide , '' said FBI spokesman Eric Gonzalez . The slayings occurred inside the Coast Guard Communications Station Kodiak . Coast Guard investigators , island police , state troopers and the FBI are investigating the incident . `` We are deeply saddened that we lost two shipmates , '' Capt . Jesse Moore said in a news release Thursday . `` This is a rare occurrence , and we are going to do everything possible to ensure we find out exactly what happened . '' The victims were identified Friday as Petty Officer 1st Class James Hopkins , an electronics technician , and Richard Belisle , a civilian , who was a retired Coast Guard chief petty officer . `` As an organization with roots in saving lives and a focus on protecting people , this tragic event has shocked us all , '' Rear Adm. Thomas Ostebo said . `` My thoughts and prayers are with the victims ' families , their loved ones and the entire Kodiak community . '' Their base is on what the city of Kodiak 's website calls the second-largest island in the United States , situated in the Gulf of Alaska about 250 miles southwest of Anchorage . The borough of Kodiak Island has a population of about 13,600 , according to the U.S. Census Bureau . The Coast Guard facility normally houses about 60 people . `` It 's definitely the topic of conversation right now , '' said Cheryl Montgomery , a manager at Henry 's Great Alaskan Restaurant . `` The townspeople are very much on edge here . '' Montgomery said that her restaurant remained abuzz Friday with rumors of who may have carried out the shootings , though `` nobody knows what 's actually going on . '' `` There 's so many weird and bizarre stories running around right now , '' she said . City Manager Aimee Kniaziowski said her office has not been instructed to take additional security precautions . `` We 're just conducting our business until we 're told otherwise , '' she said . But the small town is reeling from the loss , she added , calling the killings `` devastating . '' An elementary school on Coast Guard property went into lockdown mode Thursday morning after school leaders got a call from military police , and students were restricted to their buildings at six other schools . CNN 's Alta Spells contributed to this report .
NEW : The shooting victims have been identified as a petty officer and a civilian . Two Coast Guard members are killed at their station on Kodiak island in the Gulf of Alaska . A man is shot to death by police officers after he allegedly attacked them with an axe outside a bar in New York City, authorities said. Schools on Kodiak island were given the all-clear at 1 p.m. , an official says .