During an operation overnight in the village of Bani Naim near Hevron, IDF forces uncovered a cache of weapons in a home.
The cache included a sniper rifle, two magazines, pistol components and 600 bullets.
Two people were detained for questioning.
A total of 11 Arab suspects were arrested in operations in Judea and Samaria overnight.
The IDF regularly arrests and interrogates suspects in terror activity in Judea and Samaria, thus maintaining a high level of accurate intelligence on terror activity and nipping most of it in the bud.