Nepal’s royalist government on Monday imposed a night curfew in Kathmandu, saying it was stepping up security after Maoist rebels killed 12 policemen in weekend raids near the city. “Troops have been given orders to shoot to enforce the curfew,” the government said in an order read over state radio. The curfew applies for five hours from 11 p.m., and violators could be arrested and jailed for up to a month. It was not clear for how many days the curfew would last. Full Story