GUIYANG, Dec. 5 (Xinhua) -- At least six people were killed and 34 others injured in an explosion that ripped through an Internet cafe in southwest China's Guizhou Province Saturday night, according to local police.

The explosion occurred at around 10:30 p.m. in an Internet cafe in the downtown area of the Kaili City of Miao-Dong Autonomous Prefecture of Qiandongnan, said Guizhou's provincial public security department.

Victims have been pulled out of the debris and the injured rushed to hospitals, said the department.

Rescue workers at the scene said the powerful blast had turned the cafe into "complete ruins" and also destroyed windows of nearby residential buildings.

The police are investigating the cause of the explosion and search and rescue work is still underway.