主题：乌鲁木齐针刺事件的新闻备忘 -- 注注

URUMQI, Sept 4 (Xinhua) -- Authorities in Urumqi City have banned unlicensed marches, demonstrations and mass protests, a municipal government spokesman confirmed Friday.

The announcement was publicized by the city government Thursday night, shortly after tens of thousands of people took to streets during the daytime to protest against syringe attacks in the city, said the spokesman.

"The leaflet is meant to safeguard public order, and protect the lives of the public and guarantee property safety," said the spokesman.

The five-article announcement bans all gatherings, marches or protests on roads or other public venues in the open-air without having first obtained permits from the public security department.

Also banned are weapons, knives with restricted uses, and explosives, or use of violence, and disturbances at such events, said the spokesman.

Police said that attacks with syringes against innocent people have been carried out in Urumqi since Aug. 17. The regional health department said 476 people have sought treatment for stabbing as of midday Wednesday, of whom 89 were showing obvious signs of needle injuries.

As of Wednesday, there had been no deaths reported and no symptoms have been found of infectious disease viruses or toxic chemicals.

Police said that attacks with syringes against innocent people have been carried out in Urumqi since Aug. 17. The regional health department said 476 people have sought treatment for stabbing, of whom 89 were showing obvious signs of needle sites. At Sept. 2, there had been no deaths reported and no symptoms have been found of infectious disease viruses or toxic chemicals.