Pic: AP.

BEIJING (AP) — China says it is cracking down on Internet content promoting terrorism and violence blamed for inspiring a string of deadly attacks by Islamic extremists.

The official Xinhua News Agency said the campaign announced Friday will scour the web for material promoting jihad or teaching bomb-making techniques and other methods of violence. It said filtering will be strengthened and webmasters ordered to police their sites or be punished.

Xinhua said virtually all those taking part in recent attacks have been exposed to extremist content. It said Muslim radicals seeking independence for the northeastern region of Xinjiang have recently flooded the Web with such material.

A total of 63 people have died this year in a string of attacks in Xinjiang and elsewhere that show heightened levels of daring and planning.