An unmanned Israeli surveillance aircraft crashed in the Gaza Strip on Sunday after experiencing a technical malfunction, the IDF said.
The military said it was investigating what caused the Skylark drone to go down.
Israel uses drones to gather intelligence on terrorist activity in Gaza by Hamas and other groups.
In a statement, Hamas said it had “seized” the aircraft. It gave no further details and did not provide any photos.
The army would not say whether any secrets or technology had slipped into Hamas’ hands. Military officials though said the Skylark has safeguards to prevent disclosure of information to unauthorized personnel.