In Xinjiang, cleaning up after blasts killed 31 people and injured 94.br br (SOUNDBITE) (Mandarin) Urumqui resident Mrs. Wang saying:br br "When I came here this morning, I was not allowed in. They kept washing blood off the floor."br br Explosives were reportedly hurled from two vehicles as they ploughed into shoppers at a local market in Urumqi.br br Stepped-up security after the attack authorities are calling a "serious violent terrorist incident"br br China has blamed a series of attacks in recent months on separatist militants from the region, which is a traditional home of the Ethnic Muslim Uighurs.