\n A tourist believed to be in her 20s has died after being bitten by a shark in Australia on Thursday, according to police.\n <\/p>\n
\n A man, also believed to be in his 20s, suffered serious injuries in the attack at Crowdy Bay, eastern Australia<\/a>, and was airlifted to hospital in a critical condition, said New South Wales police in a statement.\n <\/p>\n \n Emergency services were called around 6:30 a.m. local time (2:30 p.m. Wednesday ET) following reports that two people had been bitten by a shark, said police.\n <\/p>\n \n \u201cWitnesses assisted the pair prior to the arrival of NSW Ambulance paramedics; however, the woman died at the scene,\u201d reads the statement.\n <\/p>\n \n Crowdy Bay is about 350 kilometers (217 miles) north of Sydney.\n <\/p>\n \n Authorities have not yet determined what species of shark was involved in the attack.\n <\/p>\n \n The victims are tourists from Switzerland, a police spokesperson told CNN on Thursday.\n <\/p>\n \n Ambulance superintendent Joshua Smyth told journalists that the woman had died by the time paramedics arrived on the scene.\n <\/p>\n \n He also praised a bystander who administered first aid to the male victim, including putting a tourniquet around his leg.\n <\/p>\n \n Smyth said the tourniquet \u201cpotentially saved his life and allowed New South Wales Ambulance paramedics to get to him and render first aid.\u201d\n <\/p>\n \n Local rescue organization Surf Life Saving NSW said <\/a>that nearby beaches would be closed for at least 24 hours while they try and find the shark using drones.\n <\/p>\n