LONDON, England (CNN) -- The European Union's foreign policy chief said Friday he was "disappointed" by the latest talks with Iran over the nation's nuclear program, a failure that could result in more sanctions for the Middle Eastern nation.
Iran's chief nuclear negotiator Saeed Jalili made clear that his country is adamant about advancing its nuclear activities.
The five permanent members of the U.N. Security Council -- the United States, Russia, China, Britain and France -- plus Germany, had agreed to draft a new resolution imposing further financial and visa restrictions if there were no new steps forward in the nuclear stand-off by the end of November.
The council already has imposed sanctions on Iran for failing to meet requirements set out by the International Atomic Energy Agency, the U.N. nuclear watchdog.
"I have to admit that after five hours of meetings, I expected more," said Javier Solana after Friday's meeting in London.
Saeed Jalili, Iran's chief nuclear negotiator, made clear that his country is adamant about advancing its nuclear activities.
"We will defend our rights -- and at the same time we welcome further negotiations," Jalili said.
Jalili and Solana spoke separately to reporters after their talk.
Tehran insists its nuclear program is for peaceful, civilian purposes. But leaders in the United States and other countries, including some European nations, have expressed concerns that Iran may be pursuing nuclear weapons under the guise of a nuclear energy program. E-mail to a friend
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