6 October 2012 Last updated at 19:37 ET
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The Israeli army released the video, which it says shows the shooting down of an unmanned aircraft in Israeli airspace
The Israeli air force has shot down a small unmanned aircraft after it entered the south of the country, the military has said.
The aircraft crashed in the north of the Negev desert. It is not clear where it came from.
Military officials said the aircraft had flown in from the west, but not from the Gaza Strip.
The army said it was unclear if the drone was being used for reconnaissance or for a potential attack.
However, Israeli radio quoted a military spokesman as saying the aircraft was not carrying explosives.
An Israeli helicopter later landed near the crash site of the downed drone
Military spokesman Lt Col Avital Leibovich said the drone, which flew over the Gaza Strip but did not originate from there, had been detected by Israeli ground systems.
He said Israeli jets flew alongside the aircraft before deciding to bring it down in the largely uninhabited northern Negev area.
Other officials said the drone had spent about 20 minutes in Israeli air space.
Defence Minister Ehud Barak said Israel viewed the incident "very severely".
"We will consider our response later," he said, raising the possibility of retaliatory action.
Correspondents say several small drones have penetrated Israeli territory in the past, but from the north.
On at least three occasions unmanned aircraft operated by the Lebanese Shia movement Hezbollah were detected.
An Israeli navy ship was damaged by an explosive drone in July 2006.
Two others flew over part of northern Israel in 2004 and 2005 without being intercepted.
The Israeli army released the video, which it says shows the shooting down of an unmanned aircraft in Israeli airspace
The Israeli air force has shot down a small unmanned aircraft after it entered the south of the country, the military has said.
The aircraft crashed in the north of the Negev desert. It is not clear where it came from.
Military officials said the aircraft had flown in from the west, but not from the Gaza Strip.
The army said it was unclear if the drone was being used for reconnaissance or for a potential attack.
However, Israeli radio quoted a military spokesman as saying the aircraft was not carrying explosives.
Military spokesman Lt Col Avital Leibovich said the drone, which flew over the Gaza Strip but did not originate from there, had been detected by Israeli ground systems.
He said Israeli jets flew alongside the aircraft before deciding to bring it down in the largely uninhabited northern Negev area.
Other officials said the drone had spent about 20 minutes in Israeli air space.
Defence Minister Ehud Barak said Israel viewed the incident "very severely".
"We will consider our response later," he said, raising the possibility of retaliatory action.
Correspondents say several small drones have penetrated Israeli territory in the past, but from the north.
On at least three occasions unmanned aircraft operated by the Lebanese Shia movement Hezbollah were detected.
An Israeli navy ship was damaged by an explosive drone in July 2006.
Two others flew over part of northern Israel in 2004 and 2005 without being intercepted.