In February, the European Parliament passed a resolution to start investigations into the use of torture by the CIA after a so-called torture report by the US Senate Intelligence Committee was released in late 2014.
Wednesday's resolution follows up on the state of the investigation. The European Parliament seeks to find those complicit in CIA torture perpetrated in the European Union, as well as working to end the "undue classification of documents" that leads to impunity for the perpetrators of CIA human rights violations, according to the latest statement.
In April, a Polish prosecutor gave investigators until October to probe allegations that the CIA ran secret prisons in the country.
In December 2014, the US Senate Intelligence Committee released a 500-page summary of a detailed 6,000-page report into CIA interrogation techniques used on alleged al-Qaeda agents following the 9/11 terrorist attacks. The so-called Torture Report triggered a wave of criticism toward the CIA and other US intelligence services. The agencies are accused of willful disregard of human rights, breaking their own laws against torture and not fully disclosing the scale and character of the interrogation program to the US Congress.