PATTANI, Thailand — Thai police believe insurgents fired grenades at a fair in southern Thailand, injuring 30 people, in anger over government efforts to win over local Muslim religious leaders. Police Lt. Col. Krajang Raknarong said Sunday the attackers fired grenades at a security checkpoint near the trade fair in Narathiwat province's Bajoh district Saturday. Thirty people were hurt, four seriously, when two grenades exploded near fair booths. At least five people were killed in southern Thailand on Saturday in separate shooting attacks blamed by police on the insurgents. — AP