A drone launched from Yemen by Houthi rebels hit the arrivals hall at Ramon Airport in southern Israel on Sunday, the Israeli military and the Israel Airports Authority said.
No sirens were sounded, the Israel Defence Forces (IDF) said, adding that the incident was under review.
It is rare for sirens not to warn of incoming projectiles in Israel, which has a multi-layered system to defend against missiles and drones. The vast majority of drones fired by the Houthis in Yemen have been intercepted before striking Israel.
The Israeli Air Force said an initial inquiry found that the drone was detected but was not classified as hostile, allowing it to fly through air defences.
"There is no indication of a technical malfunction in the existing detection systems," the military said in a