North Korea asked Iraq this week if it could fly a plane through Iraqi airspace to Syria, an adviser to Iraqi Prime Minister Nuri al-Maliki told CNN on Friday.
Al-Maliki rejected the request because there was suspicion that the plane would be carrying weapons, said adviser Ali al-Mousawi, without providing additional details.
The prime minister talked by phone with U.S. Vice President Joe Biden on Friday afternoon, officials said.
Biden asked Iraq for help in stopping weapons from reaching Syria, according to a statement released by his office.
Biden stressed to the Iraqi prime minister "the need to prevent any state from taking advantage of Iraq's territory or airspace to send weapons to Syria."
Al-Maliki "expressed the Iraqi government's discomfort with some informal U.S parties of stirring suspicions about Iraq's position toward Syrian crisis," and that Iraq has held a "firm position in rejecting any weapon supplies or violent activity over Iraq's territories or its airspaces," according to a release from his office.
"Al-Maliki reiterated the position of the Iraqi government based on the need to find a peaceful political solution for the Syrian crisis and its rejection to supply ammunitions to any party involved in the Syrian conflicts," the release said.
Opponents of Syrian President Bashar al-Assad's rule are concerned about the shuttling of arms to his government by entities such as Iran. Iraq borders Syria and Iran.
Al-Assad magazine interview
Earlier, Syria's besieged president slammed the rebels battling his government forces, but said the "door to dialogue is open."
"Dialogue with the opposition is the only way out to address the crisis," al-Assad said in a magazine interview published Friday.
The cries for freedom and democracy that spread across the Arab world last year also reached Syria. That set the wheels in motion a standoff that morphed into a civil war in the country between the al-Assad government and a growing rebel movement.
More than 26,000 people, mostly civilians, have been killed in the one-and-half-year-long conflict, according to opposition activists.
Al-Assad, who blames the violence on terror groups, told Egypt's Al-Ahram al-Arabi magazine that "armed men are engaged in terrorism against all of the state's institutions."
"They have no support in the society. Rather, they have harmed the interests of the people by targeting the infrastructure that serves the people and killing innocent Syrians. Ultimately, they will not emerge victorious," he said.
He said backers of these forces "think the only solution is through a Libyan scenario." That's a reference to rebel forces, with foreign backing, toppling Libyan dictator Moammar Gadhafi and his government.
"But a decisive end (to the crisis) will take some time, of course. However, the door to dialogue is open and we have offered several initiatives for amnesty for all of those who put down their arms in order to encourage dialogue," al-Assad said.
The president took jabs at Saudi Arabia, Turkey and Qatar -- all supporters of the opposition.
"They suddenly saw money in their hands after a long period of poverty and think they can change (the role of) history and geography, and play a regional role," al-Assad said, referring to Saudi Arabia and Qatar.
Before the Syrian conflict started last year, Saudi Arabia served only as a "mediator with the West that does not appreciate the axis of resistance against Zionism advocated by Syria," the president said.
"Let me correct a prevalent idea that Saudi Arabia, Syria and Egypt are the triangular axis of stability in the region. This is not true. It has always been, and will remain, Syria, Iraq and Egypt," he said.
As for Qatar, it "uses the power of money and revolves in the orbit of the West by providing weapons and money to terrorists to repeat the Libyan scenario," al-Assad said. And Turkey, he said, has "lost a lot" by taking its stance on Syria.
"They are unconcerned about the interests of its people, focusing solely on its ambitions that include the new Ottoman Empire," he said.
Here's a roundup of other developments in Syria's conflict:
Mass grave, massacres reported in Damascus area