Greek police said on Monday afternoon they had located 38 Syrian refugees in the Lavara area of Evros, among them one pregnant woman and seven children.
The refugees had been trapped for days on a small islet in the Evros river along the border between Greece and Turkey, according to media reports and activists.
Greece had said on Sunday that after repeated searches it had not located any people on the islet that was outside Greek territory and had alerted Turkish authorities over the issue. The Turkish Interior Ministry declined comment.
On Monday, Greek police said the refugees were located in the Greek area of Lavara approximately four kilometres (2.5 miles) south of the coordinates of their initially reported position.
"Since they were located, Greek police forces and other government services have rushed to their aid, to provide healthcare, food and water and to transfer them to an area of temporary accommodation," police said in a statement.
Migration Minister Notis Mitarachi said on Twitter that they were in good condition and the pregnant woman was being transferred to hospital out of precaution. Greek police had also found a boat near them, he said.
Earlier, the International Rescue Committee (IRC) charity and other organisations had called for the immediate evacuation of 39 refugees from the islet.
The IRC said that among them was a nine-year old girl in a critical condition. It also cited media reports saying that her five-year-old sister had died after a scorpion had stung her and that the refugees had tried to reach the Greek mainland but had been pushed back.
"This latest situation at the Evros border highlights the brutality of pushbacks, which we know are taking place at borders across Europe," said Dimitra Kalogeropoulou, IRC Greece Director.
Greek authorities have not confirmed the information cited by IRC and have repeatedly denied forcibly repelling refugees or migrants at border points.
(Reporting by Renee Maltezou; Additional reporting by Ece Toksabay; editing by Mark Heinrich and Sandra Maler)
