VILNIUS — Lithuania’s parliament gave its seal of approval Thursday to the National Security and Defense Committee’s report that the country hosted a covert CIA prison from 2004 to 2005.

The landmark report conclusively links Lithuania to the CIA after months of speculation. Specifically, the report concludes that upper administrators in the VSD, Lithuania’s State Security Department, were responsible for implementing the prisons. The Seimas voted 67-8 with 16 abstentions in approval of the report’s findings.

“The study has prepared in good faith, without prejudice and bias,” Parliamentarian Arvydas Anušauskas, chair of the National Security and Defense Committee, told the Seimas. “For every sentence made in this report lies in the testimony, documents and facts.”

The committee concluded that three high-ranking VSD officials, Dainius Dabašinskas, Mečys Laurinkus, and Arvydas Pocius, were aware of the covert plans. Laurinkus was recently stripped of his ambassadorship to Georgia in a move that was widely interpreted as having a connection to the CIA prison probe.

The report recommends that the Seimas commissions a prosecutor to investigate charges against them. President Dalia Grybauskaitė, Prime Minister Andrius Kubilius and Speaker of the Seimas Irena Degutienė echoed that recommendation.

A story by American television network ABC published in August, which quoted anonymous former CIA officials directly involved in the extradition process who claimed the the prison was located in a wooded area near Vilnius, prompted President Grybauskaitė to order an investigation into the matter.

— Baltic Reports reporter Kevin Dugan contributed to this article.