Riyadh, Jan 2, SPA -- GCC secretary general Abdulrahman al-Atiyyah has warned against escalation of tension between Sudan and Chad, and said such a development will have an adverse impact on the regional security. In a statement, al-Atiyyah called for reaching a political settlement for the dispute between the two fraternal countries.'We in the GCC do feel anxious about these developments, and we would like to urge the two parties to practice self-restraint and to avoid escalation of tension across their joint borders', he added.--SPA www.spa.gov.sa/513991