The United States is expected to sign a nuclear deal with Saudi Arabia on Wednesday. The deal would let Saudi Arabia enrich uranium for civilian nuclear power.

A joint US-Saudi study would happen first. This would occur before any enrichment plant gets built.

Congress must vote on the deal. It would take a large majority to block it.

Secretary of State Rubio said the deal will not lead to nuclear proliferation. That means more countries building nuclear weapons.

Israel and some US lawmakers have raised concerns. Critics warn the deal could push other countries in the region toward nuclear programs.

This could include developing nuclear weapons. Reports say Pakistan's defense minister offered to share Pakistan's nuclear program with Saudi Arabia if needed.

This adds to concerns about nuclear spread in the region. The deal comes during ongoing conflict involving the United States, Israel and Iran.

Saudi Arabia has long wanted American nuclear technology. It says it has a right to a civilian nuclear program.