BEIJING (AP) — An explosion rocked a railway station in China’s restive far-western region of Xinjiang, and the state broadcaster said three people were killed and 79 people were injured.

CCTV is reporting that assailants attacked crowds with knives and set off explosions at the same time at the Urumqi South Station. The station called in a terrorist act.

The attack came as President Xi Jinping wrapped up a four-day visit to the area, state media said Wednesday.