A 7.0-magnitude earthquake struck a remote, mountainous part of China's southwestern province of Sichuan, killing 19 people, including eight tourists, and injuring more than 245 people, the provincial government and official media said on Wednesday.

Jiuzhaigou is a nature reserve and national park located in the north of Sichuan province, China. Jiuzhaigou Valley was inscribed by UNESCO as a World Heritage Site in 1992 and a World Biosphere Reserve in 1997

The Sichuan government said 100 tourists had been trapped by a landslide following Tuesday's quake. Six tourists were among those killed, according to the official China News Service.

The state-run Xinhua news agency said as many as 31,500 tourists has been already evacuated from the earthquake hit zone.

For more videos, click here.