Six people were injured in a knife attack at a train station in Guangzhou on Tuesday morning. There are conflicting reports, but according to The New York Times, citing eyewitnesses, four people are believed to have participated in the attack. One of those attackers was shot by police, another arrested, and two are believed to still be at large.

The attack comes just one week after a similar event at the train station in northwestern Urumqi involving knives as well as explosives. Three people were killed and 79 were injured in that attack. In March, in the city of Kunming, knife-wielding attacker killed 30 and injured more than one hundred people in front of thee major train station.

Chinese government officials have labeled the acts as domestic terrorism, attributing them to the separatists from the country’s Muslim Uighur ethnic minority.