WASHINGTON - The White House said Monday it opposes a stand-alone bill that would provide aid only to Israel, urging House Republicans to pass the Senate-passed legislation that includes assistance for Israel, Ukraine and others.

"We are opposed to a stand-alone bill that would just work on Israel, as we've seen proposed. We would oppose a stand-alone bill, yes," National Security Council spokesperson John Kirby told reporters at the White House's first briefing after Israel became the target of a large-scale retaliatory attack by Iran over the weekend.

President Joe Biden reiterated the US commitment to Israel's security on Monday, underscoring as well the need to contain the conflict from further spreading

House Speaker Mike Johnson, who has been blocking the Joe Biden administration's supplemental budget request earlier approved by the Senate, said Sunday that he will try to take up a certain sort of Israel aid bill on the House floor this week. He didn't say whether the measure would also include aid to Ukraine, which Democrats are also pushing for.

In February, the House voted on a stand-alone bill providing $17.6 billion in aid for Israel. The bill failed to pass with a tally of 250-180, short of the two-thirds majority needed.

President Joe Biden reiterated the US commitment to Israel's security on Monday, underscoring as well the need to contain the conflict from further spreading.

"The United States is committed to Israel's security. We're committed to a ceasefire that will bring the hostages home and prevent the conflict from spreading beyond what it already has," Biden said as he sat side-by-side with visiting Iraqi Prime Minister Mohammed Shia al-Sudani in the Oval Office of the White House.

These were Biden's first public remarks since Iran launched a large-scale retaliatory attack against Israel on Saturday, in which most of the missiles and drones used were intercepted - mainly by Israeli and  US forces.

The Biden administration has been trying to prevent a wider regional war that the Iranian attack and a potential Israeli military response would otherwise lead to.

"We're also committed to the security of our personnel and partners in the region, including Iraq," Biden said.

"The partnership between Iraq and the United States is critical," he added.