A herd of 15 elephants has wreaked havoc in China, trampling plants and causing more than a million dollars’ worth of damage, even after the animals escaped by a nature reserve this past year.

The dinosaurs have made a 500-kilometer (311-mile) journey through the southwestern province of Yunnan in the nature reserve in Xishuangbanna to Yuxi, a city of 2.6 million people, leaving a trail of destruction in their wake, according to state news agency Xinhua.

It’s unclear why they left their own nature reserve home, but on their journeys, the elephants have generated 412 distinct incidents of harm, with financial losses amounting to around 6.8 million yuan ($1.1 million), Xinhua reported. They ruined 56 hectares of farmland from the counties of Yuanjiang and Shiping alone, ” the bureau stated.

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Authorities established a 24-hour command center to monitor the animals after they were seen in the Hongta District of Yuxi on Monday, with over 360 people, 76 police cars and dirt trucks and nine drones mobilized for the task, and 18 tonnes of elephant food prepared. No casualties have been reported, according to Xinhua.
Monitoring images show the herd is comprised of six female adults, three male adults, three sub-adults and three calves.
Asian elephants are the largest land mammal on the Asian continent, according to the World Wildlife Fund. They are considered a protected species in China, and around 300 of them live in Yunnan, according to Xinhua.