"This recent incident and blast has no link to Israel or America but the outcome of the research, in which the incident happened as a consequence, could be a strong smack to the mouth of Israel and its occupying regime," armed forces chief of staff Hassan Firouzabadi was quoted as saying by the student news agency ISNA.
Asked on Israel's Army Radio on Sunday about the scope of damage from the blast, Defense Minister Ehud Barak said he did not know, but added: "May there be more like it." There was no indication that the explosion was a deliberate attack.
Iranian officials had previously said the accident happened while munitions were being moved at the base, without linking it directly to weapons research.
Brigadier General Hassan Moqaddam, hailed as the founder of Iran's missile program, was the most senior casualty.
Iran already has missiles, the Shahab-3, first tested in 1998, that it says could reach Israel, which has threatened to strike Iran's nuclear sites if diplomacy and pressure fail to stop it getting the bomb.
HASTY REACTION
Iran denies its nuclear work is aimed at developing atomic weapons but doubts about that were reinforced by a report published by the United Nations nuclear agency last week, a few days before the explosion.
The U.N. report further strained Iran's relations with the West and the Iranian parliament is debating ending cooperation with the International Atomic Energy Agency (IAEA), a prospect that Foreign Minister Ali Akbar Salehi sought to play down.
"Our response to this report is the one of patience and vigilance," Salehi told state broadcaster IRIB on the sidelines of a cabinet meeting.
"Westerners like to push us toward a hasty reaction and they like to hear that Iran says it would withdraw from the NPT (nuclear Non-Proliferation Treaty)."
Salehi said Iran would soon send a detailed and analytical rebuttal of the concerns raised in the report, which he called "unstudied and unjust."
He also said Iran remained open to resuming the talks with world powers concerned about its nuclear program that stalled in January, and that he had presented a counter-proposal to Russia about how those talks might be structured.
"We presented another proposal and informed the Russian officials of that proposal and all our efforts are to find a way out of the faked nuclear issue," he said.
Russia has sought to revive he talks between Iran and the five permanent members of the U.N. Security Council, the United States, Russia, China, Britain and France, plus Germany (P5+1) that stalled in January.

source: yahoo