(Reuters) - Turkish Kurd militants threatened on Thursday to turn all Kurdish populated areas into a "war zone" if Turkish troops entered Syria, a sign the Kurdistan Workers Party (PKK) which has allies in Syria may be taking sides in the conflict there.
A renewed alliance between Damascus and the PKK would anger Turkey and could prompt it to take an even stronger line against Syrian President Bashar al-Assad over his brutal repression of anti-government protesters.
Turkish officials say they are watching closely for signs Syria may renew its support for the PKK, which it dropped in late 1998 after Turkish tanks massed on the Syrian border. Damascus was forced to deport PKK leader Abdullah Ocalan who was later seized by Turkish special forces in Kenya.
Turkish Foreign Minister Ahmet Davutoglu has repeatedly said Syria "would not dare" make such a mistake again.