Insurgents in one of Thailand’s mostly Muslim southern provinces shot and killed four people, including a child, and wounded another two children on Thursday, police said, days after a deal was reached with the Thai government to establish a safety zone. A decades-old separatist insurgency in the Muslim-majority southern provinces of Yala, Pattani and Narathiwat has claimed more than 6,500 lives since it escalated in 2004, according to independent monitoring group Deep South Watch.