Tehran - Iran's president says his country will not allow incoming US President Donald Trump to "tear up" Tehran's landmark nuclear deal with world powers.Hassan Rouhani made the comments in a speech at the University of Tehran on Tuesday.Rouhani said: "Some man is elected in the US. Whatever plans he has, it will be revealed later. Yes, he may desire many things. He may desire to weaken the nuclear deal. He may desire to rip up the deal. Do you suppose we will allow this?"READ: Trump OK'd partner with alleged Iran laundering family tiesRouhani said such desires "cannot affect our will". The remarks were the latest Iranian leaders' attempts to calm concerns over the future of the deal in the wake of Trump's election.On the campaign trail, Trump called the deal "catastrophic" and vowed to renegotiate it.