Prime Minister Recep Tayyip Erdogan said early Friday that Iraqi Prime Minister Naouri al-Maliki showed interest in coming to Turkey this week but this was impossible because of the elections and said the Iraqi leader will come to Ankara after the July 22 polls to discuss all outstanding issues between Turkey and Iraq topped by the presence of the PKK in northern Iraq.

Erdogan said Turkey, Iraq and the U.S. would discuss the PKK issue in Ankara within the framework of the trilateral security mechanism set up by the three countries.

He warned however, that if the talks fail with Maliki Turkey will be left with no other option but to act against the PKK in northern Iraq.

Erdogan said Turkey conveyed its concerns to the U.S. over reports that the Americans were suspected of supplying weapons to the PKK in northern Iraq. He said the Americans had explained that they too had detected that such weapons had found their way into the PKK arsenal and that their investigation showed this could have happened as a result of corruption involving some U.S. personnel.

He said the government is continuing to pursue the issue.

"As a strategic ally we are extending support to you (the U.S.) whenever you confront terrorism and ask for help. Afghanistan is the biggest example of this. It is not right to adopt an approach discriminating as 'my terrorist is bad, your terrorist is good.' All terrorists are bad. And we need to form a joint platform for combat this. We have situated ourselves against terror wherever it is encountered because we suffer from it. The number of martyrs we have given to terror has exceeded 15,000. Just as how you have alarmed the world when the twin towers were hit, you should show the same participation and cooperation in this now. If you do not fulfill your responsibilities in this, we will have to do whatever it takes. And that 'whatever' is obvious," said Erdogan.