An ISIS militant who was scouting a military zone in Istanbul's Yenibosna district was nabbed by police on Feb. 20.
Police received information that a man on top of a tree was secretly looking at the army barracks, which prompted units to detain the militant at around 2:10 a.m.
The militant, identified as Muhammed Yahya E., was scouting the area to later carry out a "sensational attack," police said.
ISIS-related digital documents and images were found on the militant.
He was later arrested.