BANGKOK–Splinter groups of disgruntled Thai rubber farmers continued to protest on Monday, demanding more monetary support than the government recently approved amid low global rubber prices.The protesters represented only a small part of the rubber farming community, which overall accepted the government’s recent offer of help–a doubling of the subsidy they were receiving. But not all farmers were pleased.Monday’s protesters, whose number swelled into thousands, attacked police with bricks, rocks and bottles filled with distilled acid, while officers shot tear gas into the crowd to try to contain the situation, according to a local district police officer who spoke only on condition of anonymity. Only minor injuries of protesters and police officers were sustained, the officer said.The protests occurred in southern Thailand, where most of the country’s rubber plantations are located. Protesters blocked a highway, and police were forced to retreat.