AMMAN, JORDAN, SEPT. 1 -- U.N. Secretary General Javier Perez de Cuellar today ended two days of inconclusive talks on the Persian Gulf crisis with Iraqi Foreign Minister Tariq Aziz, who challenged the neutrality of U.N. Security Council resolutions calling for Iraq to withdraw from Kuwait and release Western hostages.

Aziz looked strained after emerging from the pink sandstone Jordanian royal palace, and Perez de Cuellar did not appear before journalists until after the Iraqi minister had departed. When he did, the U.N. leader pointed to his throat and said in a hoarse voice that all issues in the crisis were discussed, including Iraq's withdrawal from Kuwait.

Aziz described his talks with Perez de Cuellar as "useful" but said that the crisis, sparked by Iraq's Aug. 2 invasion of Kuwait, could not be resolved quickly.

"This situation is a complicated and dramatic situation. And from my humble personal experience, such a situation cannot be resolved by dramatic diplomacy. It needs quiet diplomacy. It needs patience. And it needs more time so that people understand exactly the position of others," Aziz told reporters on the steps of the palace.

The Iraqi foreign minister did not mention the proposal he made Friday, in which Baghdad said it would free the thousands of Western hostages it is holding if the United Nations guaranteed that the Western forces massing in the gulf region would not attack Iraq.

{The Associated Press quoted senior Jordanian officials as saying that substantial progress had been made in the talks between Aziz and Perez de Cuellar.

{The officials said the two men appeared close to agreement on a pact that could, if approved by all governments involved, lead to the freedom of all foreigners being held in Iraq, the deployment of an Arab peace-keeping force between U.S. and Iraqi troops along the Saudi border and an eventual resolution of the status of Kuwait.

{Under the plan discussed, the Soviet Union might help mediate simultaneous withdrawals of Iraqi troops from Kuwait and opposing forces in Saudi Arabia, the officials told the AP.

{One official also told the AP that Perez de Cuellar had delivered "a peaceful message" from Bush to Iraqi President Saddam Hussein.}

Reports about proposals for a pan-Arab buffer or disengagement force under a United Nations flag could not be confirmed.

If such ideas were brought up, they did not appear to have crystallized, judging by the tone of Aziz's comments and the fact that his exit from the talks was not coordinated with that of Perez de Cuellar. Jordanian officials had said before the talks that Perez de Cuellar would go to Baghdad to meet with Saddam if progress was made here in his talks with Aziz, but no such trip was announced.

Aziz and Perez de Cuellar met for five hours Friday and nearly two hours today. Their delegations of legal experts also held a midday session today, and Jordanian sources said the specialists discussed Iraq's seizure of hostages and the forceful annexation of Kuwait. "In one way or another, everything is on the table," one Jordanian government official here said today.

U.N. spokeswoman Nadia Younic announced that Perez de Cuellar would hold a press conference Sunday to discuss the talks.

Perez de Cuellar had said upon arrival in the Jordanian capital on Thursday that his mission was defined by the parameters of U.N. Security Council resolutions calling on Iraq to withdraw from Kuwait and to release all Westerners detained as a human deterrent against strikes on key military installations. Aziz indicated today, however, that Iraq viewed the Security Council and its five permanent members -- the United States, the Soviet Union, France, Britain and China -- with suspicion.

"When we speak about the Security Council, it is an international body, yes. But it is formed of governments and these governments are not neutral," Aziz told journalists. He pointed out that those countries with permanent seats in the Security Council are "not great friends of this region." He charged that they have supported "aggression" against Baghdad.

"When we speak about the crisis, we have to be just and fair. The members of the Security Council are not always right. They make mistakes out of self-interest and out of misinformation," Aziz said.

"In this particular situation, we were not listened to. We were not given enough time to make our case. . . . They took hasty decisions in a very short period," he said. "But justice has to be implemented and peace has to be preserved. We have suffered and we have criticized the selective approach of governments who have permanent seats in the Security Council."

Aziz said the Iraqi government viewed the gulf crisis as an "Arab problem, and it must be resolved by Arab means."

"There is no other solution," he said.

He did, however, underline the need for common goals and peaceful and just solutions, saying: "We have a great interest in the present and the future and in having normal and just relations with the outside world and with the United Nations as an international body." "And as I told my friend, the Secretary General of the United Nations, I am always at his disposal and we would like to continue our contact in the future to bring about . . . peace, security and justice in the region," Aziz concluded.