The White House said Thursday that President Barack Obama did not this week personally offer hi-tech weaponry to Israeli Prime Minister Benjamin Netanyahu suitable for use against Iran.

White House spokesman Jay Carney said there was neither agreement on or discussion of such an offer during talks between the two leaders on Monday, but did not rule out such a conversation in lower level talks with the Israelis.

Earlier, Israel's Maariv newspaper quoted sources as saying the Obama administration offered bunker busting bombs and refueling planes if Israel agreed not to attack Iranian nuclear sites this year.

"In the meetings the president had, there was no such agreement proposed or reached, Carney said.

"We have obviously, as we've discussed, high-level cooperation between the Israeli military and the US military and at other levels, with other agencies within their government and our government."

"We have provided material to the Israeli military in the past, and I'm sure we will continue to do that as part of our cooperation with and partnership with the Israeli military."

State Department spokeswoman Victoria Nuland said, "I do not believe that conversation has taken place," when asked whether State Department officials and their Israeli counterparts had discussed offers of hi-tech weaponry.

But she added: "I don't think anybody should doubt the commitment that we've made to Israel's security, to Israel's qualitative military edge."

Israel and much of the international community fear Iran's nuclear program is an attempt to build a weapon -- a charge Tehran denies.

The United States and Israel are at odds over just how immediate the Iranian threat is. Netanyahu said on Monday that sanctions against Iran have not worked, and "none of us can afford to wait much longer."

A key difference between Washington and Israel has emerged on the timeline available for a military strike against Iran, with the Jewish state warning that the weaponry available to it gives it a shorter window for action.

In response, the report said, the US administration offered to give Israel weapons and material that could extend its window to act against Iran.

In particular, it would offer bunker-busting bombs more powerful than those currently possessed by Israel, which would allow the Jewish state to target Iranian facilities even under solid rock.

The Maariv report comes shortly after world powers known as the P5+1 -- five UN Security Council members plus Germany -- offered to resume long-stalled talks with Tehran over its contested nuclear program.

Israel has cautiously welcomed the talks, but warned it must be prepared for the potential failure of any new dialogue with Iran.