Mohamed ElBaradei, general director of the International Atomic Energy Agency (IAEA), said on Friday that the Iranian government would cooperate with IAEA to draw up a plan of action on how to resolve Iran's disputed nuclear issue.

After two-hour talks with Iran's nuclear negotiator Ali Larijani, ElBaradei told the media that the meeting was "quite satisfying," and Iran had shown its willingness to clarify the pending questions on its nuclear program.

The IAEA and Iran were drawing up "a plan of action," including details about the cooperation, the IAEA chief said.

The plan would be concluded within two months, he added.

Larijani said he believed that the talks with ElBaradei would be "quite helpful" to "reach an understanding and a solution" at the meeting with the European Union foreign policy chief Javier Solana in Lisbon on Saturday.

ElBaradei and Larijani did not mention whether Iran's willingness to cooperate was based on the promise that Iran would suspend its uranium enrichment activities.

The United Nation Security Council imposed tougher sanctions on Iran with the 1747 resolution, ratified in March, while Tehran stressed the peaceful purposes of its nuclear program and insisted on uranium enrichment activities.