Eighteen migrants arrived in Kato Pyrgos Tyllirias early on Friday, with police investigating whether they arrived through the north.
The new arrival concerns 14 men, two women and two children, who are all in good health, police said.
They were spotted around 6.30 and transferred to a police station for identification. They are expected to be taken to a reception centre.
Morphou police said they are investigating whether the 18, like other migrants, were transferred from Turkey to the non-government-controlled areas in Limniti and later crossed through the buffer zone to the republic.
Earlier this week, another 22 migrants, including five women and four children, arrived in the Limnitis area on Tuesday, while 21 more migrants were found in the area last month.
The president of the Kato Pyrgos Tyllirias community council Nicos Kleanthous had repeatedly called on authorities to increase checks on the various entry points of the republic to crackdown on illegal migration through the north.