The Biden administration has decided to lift a ban on U.S. sales of offensive weapons to Saudi Arabia, three sources familiar with the matter told Reuters on Friday, reversing a three-year-old policy to pressure the kingdom to wind down the Yemen war.

The administration briefed Congress this week on its decision to lift the ban, a congressional aide said. One source said sales could resume as early as next week, while another said deliberations on timing were still under way.

"The Saudis have met their end of the deal, and we are prepared to meet ours, returning these cases to regular order through appropriate congressional notification and consultation," a senior Biden administration official said.

Under U.S. law, major international weapons deals must be reviewed by members of Congress before they are made final.

Democratic and Republican lawmakers have questioned the provision of offensive weapons to Saudi Arabia in recent years, citing issues including the toll on civilians of its campaign in Yemen and a range of human rights concerns.

But that opposition has softened amid turmoil in the Middle East following Hamas' deadly October 7 terror attack on Israel and because of changes in the conduct of the campaign in Yemen.

The threat level in the region has been heightened since late last month, with Iran and Lebanon's powerful Iran-backed Hezbollah group vowing to retaliate against Israel after Hamas' political chief Ismail Haniyeh was killed in Tehran.

The Biden administration also has been negotiating a defense pact and an agreement for civil nuclear cooperation with Riyadh as part of a broad deal that envisions Saudi Arabia normalizing ties with Israel, although that remains an elusive goal.

Since March 2022 — when the Saudis and Houthis entered into a U.N.-led truce — there have not been any Saudi airstrikes in Yemen and cross-border fire from Yemen into the kingdom has largely stopped, the administration official said.

Biden adopted the tougher stance on weapons sales to Saudi Arabia in 2021, citing the kingdom's campaign against the Iran-aligned Houthis in Yemen, which has inflicted heavy civilian casualties.

Yemen's war is seen as one of several proxy battles between Iran and Saudi Arabia. The Houthis ousted a Saudi-backed government from Sanaa in late 2014 and have been at war against a Saudi-led military alliance since 2015, a conflict that has killed hundreds of thousands of people and left 80% of Yemen's population dependent on humanitarian aid.

"We are regularly conducting airstrikes to degrade Houthi capabilities, an effort that is ongoing and will continue together with a coalition of partners," the senior U.S. administration official said.

"We have designated the Houthis as Specially Designated Global Terrorists, and we will have imposed sanctions and additional costs on the Houthi smuggling networks and military apparatus. This pressure will continue to build over the coming weeks," the official said.