Updated

The Latest on Thursday's press conference with President Donald Trump and Italian Prime Minister Paolo Gentiloni (all times EDT):

4:20 p.m.

President Donald Trump says Iran is not living up to the "spirit" of the nuclear agreement.

Trump says Iran is doing "a tremendous disservice" to the agreement brokered by the Obama administration.

The 2015 agreement by Iran and six other world powers ended some of the sanctions that had punished and isolated Iran for its nuclear program but maintained others dealing with ballistic missile research, terrorism, human rights violations and money laundering.

Trump spoke during a joint press conference Thursday with Italian Prime Minister Paolo Gentiloni,

Trump says the agreement was "a terrible agreement. It shouldn't have been signed."

He says his administration will have "something to say about" the Iran nuclear deal "in the not too distant future." He didn't elaborate.

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4:15 p.m.

President Donald Trump says Thursday's fatal shooting in Paris "looks like another terrorist attack."

Paris police say a gunman has killed a police officer and wounded another before being killed himself in an attack on the Champs-Elysees shopping district.

It was unclear how Trump concluded that terrorism may have been a factor. Paris police have yet to announce a motive,

Trump is also offering condolences from the U.S. to the people of France.

He calls the attack a "terrible thing" and says "it never ends." He says people must be strong and vigilant.

The attack came three days before the first round of balloting in France's presidential election.