"We will never step back from our struggle against terrorism. But we will keep up democratization with the same determination," Erdogan said at a meeting of his Justice and Development Party in parliament.

"We are expanding efforts so that security and democratization are secured simultanously," he said.

In their bloodiest attack recently, militants of the outlawed Kurdistan Workers' Party (PKK) fired rockets at a naval base in southern Turkey early Monday, killing six soldiers.

Five members of the security forces and a private security guard were killed in a string of attacks Saturday.

"Whenever we speak of democracy, some resort to terror.... Whenever we speak of rights and prosperity, some start shedding blood," Erdogan said.

Last year, the government announced it would expand Kurdish freedoms in a bid to reconcile with the restive community and encourage rebels to renounce violence.

The initiative however has faltered amid a string of unsettling events, including the banning of the country's main Kurdish party in December and bloody PKK attacks that have led to public outrage at the government.

Army chief General Ilker Basbug cut short a visit to Egypt Monday after the rocket attack, which coincided with a deadly Israeli operation on an aid flotilla headed to the Gaza Strip, involving Turkish vessels.

The surging violence also came after a report at the weekend quoting jailed PKK leader Abdullah Ocalan as saying he was abandoning efforts to seek dialogue with Ankara "since I could not find an interlocutor."

His calls for dialogue have been rejected by the government, which insists the PKK should either lay down arms or face the army.

The PKK, listed as a terrorist group by Turkey and much of the international community, took up arms in 1984 for self rule in Turkey's Kurdish-majority southeast, sparking a conflict that has claimed some 45,000 lives.