Rital and Ritaj, the Palestinian Siamese twins, arrived in Riyadh aboard a special medical evacuation plane today upon directives of the Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz Al Saud for medial check ups and study of the possibility of performing a surgery to separate them at King Abdulaziz National Guard Medical City. Upon arrival, they were rushed to the Riyadh-based hospital where preliminary examinations showed their situation is very critical and their health situation is unstable as they suffer from cardiac complications that might threaten their life. Further tests were being conducted to determine their situation.