A herd of 15 wild elephants on Wednesday was approaching the city of Kunming, the capital of southwest China’s Yunnan province. The group of Asian elephants, which includes three calves, have reportedly trekked for nearly 500 kilometers (300 miles) along highways and through fields of crops over the past months. According to the Chinese state-run news agency, Xinhua, the herd on Wednesday was in Yuxi, about 20 kilometers (12 miles) from Kunming, a city of 7 million people. While the elephants crossed the road, authorities blocked traffic, set up barriers and used food as bait to keep them away from populated areas. The damage they caused to farmland is estimated at 6.8 million yuan ($1.1 million), according to Xinhua.