It seems authorities think the men - who were carrying improvised swords and knives - may have passed through an area of the border where Indian and Chinese troops were involved in a stand-off earlier this year. It's suspected they were heading towards Pakistani-administered Kashmir, according to the paper. The trio reportedly spoke Uighur. Many Uighur Muslims have been involved in a separatist movement and tensions have been high in recent years, with China accusing Pakistan of failing to rein in Uighur extremists training with Pakistani extremist groups.