The Indian government claims that Chinese troops continue to illegally enter the area hundreds of times every year.[12] In 2013, there was a three-week standoff between Indian and Chinese troops 30 km southeast of Daulat Beg Oldi. It was resolved and both Chinese and Indian troops withdrew in exchange for a Chinese agreement to destroy some military structures over 250 km to the south near Chumar that the Indians perceived as threatening.[13] Later the same year, it was reported that Indian forces had already documented 329 sightings of unidentified objects over a lake in the border region, between the previous August and February. They recorded 155 such intrusions.