Bangladesh's prime minister has warned she will take tough action against mutinous border guards unless they surrender their weapons immediately. "Do not force me to take tough actions or push my patience beyond tolerable limits," Sheikh Hasina said.A mutiny by the paramilitary troops in Dhaka on Wednesday has spread outside the capital, reports say. Latest reports from Dhaka speak of at least 10 tanks moving towards the border guards' headquarters. In a televised address to the nation earlier on Thursday, the prime minister warned the mutineers: "Lay down your guns immediately and go back to barracks."