(CNN) Iranian President Hassan Rouhani warned Saturday that the United States' re-imposed sanctions on Iran will not help his country in fighting drug trafficking and will open doors for illegal drugs into western countries, including the United States.

Rouhani made his remarks while speaking from Tehran at an anti-terrorism conference attended by parliamentary speakers from Afghanistan, Pakistan, Turkey, China and Russia. Rouhani said "boycotting Iran undermines our ability to fight drugs and terrorism," according to Iran's state-run Tasnim news.

"By making Iran weaker through sanctions, many people will not be safe. Those who do not believe what we say, they had better look at the map," Rouhani said.

Hassan Rouhani

The Iranian president said his country spends millions of dollars each year in the fight against drug trafficking, "the results of which guarantees more health for people from Eastern Europe to Western America and from Northern Africa to Western Asia."

"I warn all those who boycott, that if our abilities in fighting drugs and terrorism in their origins is undermined, you will not be able to survive the debris of drugs, refugees and bombs and assassination," Rouhani said.

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