section_path: History/2000s/Second insurgency 2004–2006
section_name: Second insurgency 2004–2006
paragraph_text: Second insurgency 2004–2006
  
  Kongra-Gel called off the cease-fire at the start of June 2004, saying Turkish security forces had refused to respect the truce. Turkish security forces were increasingly involved in clashes with Kurdish separatist fighters. Ankara stated that about 2,000 Kurdish fighters had crossed into Turkey from hideouts in mountainous northern Iraq in early June 2004.
  
  While the fight against the Turkish security forces between 2004 and 2010 continued, the PKK and its ancillary organizations continued to enjoy substantial support among the Kurds of Turkey. In 2005, the original name of the organization PKK was restored, while the Kongra-Gel became the legislature of the Kurdistan Communities Union (KCK). Turkey's struggle against the Kongra-Gel/PKK was marked by increased clashes across Turkey in 2005. In the southeast, Turkish security forces were active in the struggle against the Kongra-Gel/PKK. There were bombings and attempted bombings in resort areas in western Turkey and Istanbul, some of which resulted in civilian casualties. A radical Kurdish separatist group calling itself the Kurdish Freedom Hawks (TAK) claimed responsibility for many of these attacks. The TAK is a rival to PKK that since 2006 repeatedly damaged the PKK's efforts to negotiate cease-fires and unlike the PKK, is seeking to establish independent Kurdistan. In 2006 alone, the PKK claimed over 500 victims. On 1 October 2006, the PKK reportedly declared a unilateral cease-fire that slowed the intensity and pace of its attacks, but attacks continued in response to Turkish security forces significant counterinsurgency operations, especially in the southeast.