YALA, Thailand, April 20, SPA -- A bomb exploded Sunday near a busy market in Thailand's insurgency-wrecked south, wounding 13 people, police said. The blast wounded 13 people, including two policeofficials and a 4-year-old Muslim boy, police Lt. Gen. Adul Sangsingkaew said. No one had claimed responsibility for the attack, the Associated Press reported.--SPA www.spa.gov.sa/547782