Police in northwestern Mexico are searching for 27 farmworkers who were kidnapped by dozens of heavily armed men wearing military-style uniforms. The attorney general of Sinaloa state says the assailants got the farmworkers out of bed at a vegetable farm just outside the state capital of Culiacan on Monday. They then drove off with the group in a caravan of sport utility vehicles. The victims were all men between 16 and 61 years old who make less than $10 per day. State prosecutor Alfredo Higuera said Tuesday the motive for the mass kidnapping is still being investigated. But local media say a drug gang may have kidnapped the men to make them work growing marijuana.