Israel said the compound beneath al-Ansar Mosque, in Jenin refugee camp, belonged to operatives from Hamas and Palestinian Islamic Jihad who were responsible for attacks in recent months.
The escalation comes amid Jewish holidays and the UN General Assembly.
Hamas warned that "the Israeli enemy must realize that the security of Tel Aviv is linked to the security of Jenin.”
The improvised launcher was located adjacent to the town of Silat al-Harithiya. Nobody was hurt and no property was damaged, according to preliminary reports.
Security forces surrounded a terror suspect's house and successfully arrested him without resistance on his part.
While the BBC said it “acknowledged a problem with the interview” on its online “corrections and clarifications page" the mistake was not acknowledged.
Abdallah Hassan Muhammad Zubah had been behind many of the attempts in recent months to fire rockets on Israelis from the West Bank.
IDF operates in Jenin for the first time in two months • Three Hamas terrorists arrested, one Palestinian rushed for treatment in Israel
MIDDLE EAST AFFAIRS: The recent terrorist attack in the West Bank and Iran’s boasting about its ability to influence attacks in the West Bank showcase the danger of Tehran’s hand.
The Gazafication of the West Bank is not a theoretical threat to be used against any hint of settlement evacuation. It is the reality unfolding on the ground today.