RIYADH: Child labor is becoming a problem in Saudi Arabia, where nearly 1.54 percent of the child population works, a study said. The study, first of its kind in the Kingdom, commissioned by King Abdul Aziz City for Science & Technology (KACST) and conducted by Dr. Mohammad Abdullah Al-Naji, put the Eastern Province on top of the list at 2.3 percent followed by Makkah, Madinah, Asir and Riyadh. Economic issues are the primary driving factors behind child labor, followed by other factors that include dropping out of school and domestic compulsions, the study said.