One man and three boys, all relatives, were rescued off the shores of Yarmouth on Thursday after getting swept away by the tide at 1:22 p.m., authorities said.
The man, 20, and the boys, 11, 12, and 13, were vacationing with family at the Green Harbor Resort, said Yarmouth Police Sergeant Kal Boghdan.
The four went swimming in a section of water that separates the resort from the beach on the opposite shore, said Boghdan. The current picked them up, pulling them away from the shore.
A group of college students saw the distressed swimmers and went to rescue them, said Boghdan. After reaching the shore, the 20-year-old was given CPR by one of the rescuers.
The 12-, 13-, and 20-year-old were taken back to the resort side of the shore, while the 11-year-old was taken to the beach side, leading to some tense moments when officials on the shore side believed that the 11-year-old was still missing, according to Boghdan.
The 11-year-old and 20-year-old were transported to Cape Cod Hospital with injuries that were not considered life-threatening, said Boghdan.
The swimmers’ parents were not at the scene but were notified and went to the hospital, said Boghdan. Boghdan said he wasn’t sure of the four’s exact relationship.Melissa Hanson can be reached at melissa.hanson@ globe.com or on Twitter @Melissa__Hanson.