The 15th Conference of Arab Parliamentary Union was opened here today. Several Arab parliaments took part in the conference. The Saudi delegation to the two-day conference was led by Sheikh Dr. Abdullah bin Mohammed bin Ibrahim Al Al-Sheikh, the Chairman of Shoura Council. In an opening speech, the Chairman of Omani Shoura Council Sheikh Ahmed bin Mohammed Al-Esayi stressed the need for concerted Arab efforts to face challenges witnessed by the Arab world. On behalf of the conferees, Al-Esayi strongly condemned the Israeli aggression on Gaza, appealing to all human right institutions to prosecute the perpetrators.