Iran Nuke Deal Reached; President Obama Speech VIDEO

The preliminary agreement allows all sides — the U.S., Iran and five other world powers — to continue working toward a final agreement by a June 30 deadline.

Speaking in the Rose Garden shortly after negotiators unveiled the plan in Switzerland, President Obama called the agreement a “historic understanding.”

“It is a good deal,” Obama said.

With the framework, Obama may soon face congressional critics concerned about the direction of talks. But the president urged Congress to consider it, and stressed that negotiations are not over yet. He claimed the framework, if fully implemented, would prevent Iran from getting a nuclear weapon.

“This framework would cut off every pathway Iran could take to obtain a nuclear weapon,” he said.

Secretary of State John Kerry, earlier, tweeted that all sides had the “parameters to resolve major issues” and will soon get back to work on a “final deal.”

“Big day,” he tweeted.

Reading out a joint statement, European Union foreign policy chief Federica Mogherini said the seven nations would now start writing the text of a final accord. She cited several agreed-upon restrictions on Iran’s enrichment of material that can be used either for energy production or in nuclear warheads. She said Iran won’t produce weapons-grade plutonium.

Crucially for the Iranians, economic sanctions related to its nuclear programs are to be rolled back after the U.N. nuclear agency confirms compliance.

The apparent breakthrough comes after days of talks that went into overtime after missing a March 31 deadline, raising doubts on whether the negotiators could reach any agreement at all.

But the German Foreign Office tweeted Thursday: “Agreement on framework for final agreement reached.”

Iranian President Hassan Rouhani also said they found “solutions” on key issues and would start “immediately” on drafting a deal to finish by the June 30 deadline.