Minister of Interior and Commander of the Internal Security Force (Lekhwiya) HE Sheikh Khalifa bin Hamad bin Khalifa Al Thani held an official talks session with Minister of Interior of Saudi Arabia HRH Prince Abdulaziz bin Saud bin Nayef bin Abdulaziz Al Saud in Doha on Wednesday. The minister of interior and his Saudi counterpart also attended the signing of a cooperation agreement to exchange personal data and information for security purposes, and a memorandum of understanding (MoU) for scientific, training and research cooperation between the ministries of interior in the two countries. (QNA)