"As long as ambiguities in the package are not removed, any immediate response by Iran could bring destructive results," Iranian Deputy Foreign Minister Manouchehr Mohammadi, who is on a visit in Beijing, was quoted by official IRNA news agency assaying.

He called on Western countries to be patient, saying that threat and pressure would have no desirable impact on resolving the nuclear issue.

"We should resolve Iran's nuclear case diplomatically without any pressure," Mohammadi said.

"There's room to amend certain parts before the disclosure of the package's contents to the world," said the diplomat, adding that "Tehran would accept the package if it upholds the country’s nuclear rights."

Iran's top nuclear negotiator Ali Larijani said on Tuesday that his country would not respond to the package before Saturday's G8 summit as requested by the West.

Iranian President Mahmoud Ahmadinejad, who has said that Iran will present its official response in mid-August, vowed Tuesday never to give up right to enriching uranium for fueling nuclear power plant, according to IRNA.

On June 6, EU foreign policy chief Javier Solana presented Iran with a package backed by the five permanent members of the Insecurity Council plus Germany.

The proposal includes both incentives and penalties aimed at persuading Iran to suspend uranium enrichment, which could be used to make atomic bomb.