Operation investigation to HDP, DTK and HDK 2019-10-10 11:37:09 ANKARA - An investigation was launched against HDP, HDK and DTK Co-chairs who reacted to the North and East Syria operation. Ankara Chief Public Prosecutor's Office launched an investigation against People's Democratic Party (HDP), People's Democratic Congress (HDK) and Democratic Society Congress (DTK) Co-chairs who criticized the operation in a statement.