A man fired blank cartridges outside Turkish Prime Minister Recep Tayyip Erdogan's offices in Ankara during a cabinet meeting on Monday, Anatolia news agency reported.

The suspect fired three times outside the building located near Kizilay Square, the heart of the Turkish capital, ten minutes after the meeting of the ministers started, it said.

Turkish Prime Minister Recep Tayyip Erdogan lauded on Saturday his AKP government's 10 years in power as a revolution in Turkey's understanding of politics, ending a military legacy and exalting the will of the people.

"Not only a new party came to power... but a mentality revolution took place," Erdogan told his party's rank and file at an annual camp in Kizilcahamam near Ankara.

German Chancellor Angela Merkel will hold talks next week with Turkish Prime Minister Recep Tayyip Erdogan on bilateral ties and the crisis in Syria, her spokesman said here on Friday.

Erdogan will arrive in Berlin Tuesday to open a new Turkish embassy building with Foreign Minister Ahmet Davutoglu and his German counterpart Guido Westerwelle.

Iranian President Mahmoud Ahmadinejad has urged a ceasefire in Syria and called for internal dialogue to resolve the crisis, but rejects a Turkish proposal to replace President Bashar Assad, Kuwait's press reported Thursday.

"The continuity of the fighting and the killing of innocent and unarmed Syrian citizens ... is unacceptable. A ceasefire must be achieved and then a dialogue started," said Ahmadinejad, cited by the daily Al-Anbaa newspaper.

Turkey's Kurdish rebels will retaliate to any Turkish attacks on Kurds in war-torn Syria, the second in command of the outlawed PKK said in an interview published Wednesday.

"Turkey should stay out of this conflict and stop its scheming," Murat Karayilan, who heads the outlawed Kurdistan Workers' Party (PKK) in the absence of its jailed leader Abdullah Ocalan, told Swiss daily Le Temps.

A senior U.S. official will hold talks in Ankara on Tuesday on a range of issues including the Syrian crisis amid heightened tensions between Ankara and Damascus, an embassy spokesman said.

"We continue to consult with our partners in the region including Turkey on a variety of issues related to Syria," U.S. embassy spokesman in Ankara T.J. Grubisha told AFP.

The United States on Monday called on all Syria's neighbors to keep a careful watch over their airspace, after Turkey said it had intercepted a Syrian plane from Russia carrying military equipment.

"Certainly we support the decision that Turkey has made in light of the apparent violation of their airspace by this aircraft," State Department spokeswoman Victoria Nuland told reporters.

Turkish Prime Minister Recep Tayyip Erdogan reiterated Monday that the cargo Ankara confiscated from an intercepted Syrian plane contained weapons, shrugging off Russian claims that the plane carried legal radar equipment.

"It is beyond any doubt that the cargo is war equipment," Erdogan told reporters in Ankara.

German Foreign Minister Guido Westerwelle said Friday he has hastily scheduled a visit to NATO partner Turkey in a bid to ease rising tensions with Syria.

Westerwelle, who is on a trip to China, said in a statement he would hold talks Saturday with his Turkish counterpart Ahmet Davutoglu in Istanbul on "the situation in Syria and on the Turkish-Syrian border".

Turkish Prime Minister Recep Tayyip Erdogan said Thursday the cargo seized on a Syrian plane intercepted on its way from Moscow to Damascus carried military equipment and ammunition for the Syrian regime.

Erdogan said the cargo was "equipment and ammunition shipped to the Syrian Defense Ministry" from a Russian military supplier, in remarks televised by NTV news channel.