 On 1 May 2010 the PKK declared an end to its cease-fire, launching an attack in Tunceli that killed four and injured seven soldiers.On 31 May, Abdullah Öcalan declared an end to his attempts at re-approachment and establishing dialogue with the Turkish government, leaving PKK top commanders in charge of the conflict.The PKK then stepped up its armed activities, starting with a missile attack on a navy base in İskenderun, killing 7 and wounding 6 soldiers.