Greek authorities reported Friday that they had seen a spike in migrant arrivals from Turkey to the Aegean Sea islands after months of dwindling numbers.
A total of 261 new arrivals were registered on the islands in the 24 hours since early Thursday.
That is far fewer than the thousands who had been arriving daily at the peak of the migration crisis last year, but triple the August daily average of 94 people.
"We presume that the increase is linked to excellent weather conditions," a Greek coastguard officer told dpa. The trip from Turkey to the islands is typically a dangerous one.
Migrants who disembark on Greece's eastern Aegean Islands are not allowed on the mainland. They must instead wait several months until their asylum applications are accepted or otherwise face deportation back to Turkey.
There are currently about 11,000 people in overcrowded centres on the islands - which have room for no more than 7,450 - according to official Greek figures.