Turkey condemns consulate staff arrest in Greece
Greek media reported the arrest of another Greek national in connection with the case who worked on a ferry as a cook.
The Turkish foreign ministry said the espionage charge against Bayram also stemmed from his "taking photographs of vessels".
It said Greece violated international convention on consular relations by arresting Bayram, adding that the case against him was "constructed by certain circles willing to increase tensions in relations with Turkey".
It made no mention of the second man who worked on the ferry.