Occupied Jerusalem: Israel carried out a missile test on Thursday, the Defence Ministry said, raising speculation the launch was part of a programme to develop longer-range weapons which could act as a deterrent against Iran.

Israel Radio said the missile tested was capable of carrying an "unconventional payload". It quoted unidentified foreign reports as saying Israel was developing the Jericho III long-range surface-to-surface missile. The radio report said Israel has carried out tests to improve anti-missile systems to intercept both short- and medium-range rockets, including Katyusha rockets used by Hezbollah militants in Lebanon and missiles in Iran's arsenal.

"A successful missile launch was carried out within the framework of examining rocket propulsion," the Defence Ministry said in a brief statement. Amateur photos posted on Israeli news websites showed a white plume in the sky above central Israel.

Olmert warning

Israeli Prime Minister Ehud Olmert said on Monday that Israel would consider "all options" to prevent Iran from developing nuclear weapons. Israel is believed to have atomic arms and foreign analysts have said for many years that its Jericho I and Jericho II missiles can carry nuclear warheads. Analysts say the Jericho missiles are a variant of the civilian Shavit missile which Israel uses to launch satellites into space.

The Hebrew YNet website quoted unnamed defence officials as saying the test had been "dramatic".