The U.S. Department of State’s Rewards for Justice program has authorized up to $12 million of rewards for information leading to the identification or location of the senior members of the PKK group, according to a statement made Tuesday by Deputy Assistant Secretary of State Matthew Palmer, who was in Turkey for a visit.

Released by the U.S. Embassy in Ankara, the statement said Washington approved up to $5 million for information on PKK’s acting leader Murat Karayılan, $4 million for Cemil Bayık and $3 million for Duran Kalkan.

Karayılan has been the PKK’s acting leader ever since the organization’s founder and leader, Abdullah Öcalan, was captured by Turkish security forces in 1999. The announcement came after ties between the two countries started to normalize as both countries lifted sanctions against their top officials on Sunday.