India warns China that border road threatens security

India condemned a new road that China is building on the rivals' Himalayan border on Friday, saying it raises "serious security" concerns.The two sides are trading increasingly stern diplomatic warnings over the new hotspot, a remote scrap of territory where the frontiers of China, India and Bhutan meet.Beijing made a formal protest this week, accusing Indian border guards of crossing from the northeastern state of Sikkim into its Tibetan territory to stop the road building.