OAK ISLAND, N.C. — Two teenagers were seriously injured in two separate shark attacks in the same North Carolina town on Sunday, terrifying beach goers.

Oak Island Mayor Betty Wallace said the first victim, a girl, lost part of her arm and could lose her left leg. Just over an hour later, a 16-year-old boy also was attacked by a shark and was airlifted to a hospital, Wallace said. He lost an arm.

Local officials sent an all-terrain-vehicle to get everyone out of the water, and the Brunswick County Sheriff’s office was planning to have a helicopter patrol the coastline, the mayor said.

Wallace said Sunday evening that she had no further information on the girl’s condition. The girl is not from Oak Island but was visiting family, the mayor said. Dispatchers said they received the first call at 4:12 p.m. The second attack was at 5:30 p.m.