China believes that peaceful resolution through diplomatic talks is the best choice to solve the Iranian nuclear issue, sources from China's Foreign Ministry said this morning.

"China has always believed that seeking a peaceful resolution to the Iranian nuclear issue through diplomatic talks is the best choice (to solve the issue) and in the interests of all parties concerned," said the spokesperson who declined to be named for this report told journalists.

Earlier on Tuesday, top Iranian nuclear negotiator Ali Larijani handed over to foreign ambassadors in Tehran Iran's formal response to a package of proposals agreed on by six nations to solve the nuclear standoff without disclosing any details of the reply.

"Iran now is ready for serious talks with the six world powers from this Wednesday over the package," Larijani said.

China is carefully studying the response of Iran, according to the Chinese Foreign Ministry Spokesman's office.

The Chinese side hopes the Iranian side would earnestly consider concerns of the international community and come up with necessary and constructive measures, the spokesperson said.

"We also hope that other parties concerned will remain calm and patient, show flexibility, stick to the orientation of peaceful resolution (of the issue) and create favorable conditions for resuming talks as soon as possible," the spokesperson said.