President Trump has waived a raft of sanctions against Iran as required under a 2015 nuclear agreement. The US will stay in the deal for the time being. But the US president warned European allies and Congress it will be the last such waiver he signs, if they fail to agree to radical changes. CGTN's Nathan King has this report.

US President has called the Iran nuclear deal the worst deal in US history and Friday's decision to waive sanctions once again doesn't mean he's changed his mind. In a statement the US President said: "Today, I am waiving the application of certain nuclear sanctions, but only in order to secure our European allies' agreements to fix the terrible flaws of the Iran nuclear deal. This is the last chance. In an absence of such agreement, United States will not again waive sanctions in order to stay in the Iran nuclear deal." Separately the US announced financial sanctions against members of Iran's government in connection with the demonstrations held earlier this month and against those linked to Iran's ballistic missile program.

So the Iran nuclear deal lives on for now but the US approach is in sharp contrast to other nations who negotiated the 2015 deal with Iran. This week the European Union met and said that the deal was working and that the US was jeopardizing it.

SIGMAR GABRIEL GERMAN FOREIGN MINISTER "It would send a very dangerous signal to the rest of the world if the only agreement which prevents us from the proliferation of nuclear weapons would be negatively affected."

Russia and China agree with their European partners and Iran in talks with Russia this weeks expressed their dissatisfaction with the US.

MOHAMMAD JAVAD ZARIF IRANIAN FOREIGN MINISTER "Unfortunately another member of JCPOA (The Joint Comprehensive Plan of Action) not only have not fulfilled its JCPOA obligations but also implements destructive policies."

Analysts say that if the US continues to weaken the nuclear deal Tehran could just walk away.

ROBERT MALLEY INTERNATIONAL CRISIS GROUP "That's what creates this constant feeling of fragility about the deal which is at some point the Iranians may say, 'Wait a minute, our deal was we get economic relief, you get nuclear relief. Right now you get nuclear relief and you want to chip away at the economic benefits we're getting.' At some point they may decide it's not worth it for them."

NATHAN KING WASHINGTON US President Trump has already pulled out many international agreements negotiated by his predecessors. But critics say if he pulls out this one, not only could it threaten peace in the Middle East, but also encourage nuclear proliferation  around the world. Nathan King, CGTN, Washington.