Prime Minister Recep Tayyip Erdogan said he told Secretary of State Condoleezza Rice by telephone Sunday night that Turkey expected "speedy steps from the U.S." in quelling the PKK. He said Rice asked "for a few days."

McCormack did not dispute the account of the conversation but declined to comment on what Rice meant by asking for "a few days."

Erdogan did not specify what he meant by "speedy steps," but he has often urged the United States and Iraq to crack down on the PKK. Turkish leaders say it is the responsibility of those countries to do whatever is necessary to destroy guerrilla bases in northern Iraq.

Steven Cook, a fellow at the Council on Foreign Relations, noted previous Turkish incursions into northern Iraq had not destroyed the PKK, which has waged an insurgency in Kurdish-dominated southeastern Turkey that has killed some 30,000 people since 1984.

"The PKK is trying to draw the Turks into Iraq to keep them bogged down there," Cook said, saying the rebels hoped prolonged military action in Iraq would destabilize Turkey.

Egypt and Jordan cautioned Turkey on Monday against launching an offensive into Iraq, a reflection of Arab countries' fears of widening the Iraq conflict.

Arab nations traditionally oppose any foreign incursion into a fellow Arab state, and they fear a Turkish attack could fuel separatist sentiment among Iraqi Kurds and increase the danger of Iraq's breakup. But they also have ties with predominantly Muslim Turkey and oppose Kurdish separatist movements.

"I hope that both sides, Turkey and Iraq, will sit together to find a solution to the Kurdish problem," Egyptian President Hosni Mubarak said. In Jordan, government spokesman Nasser Judeh said: "We're concerned about Iraq's security, unity and integrity."