An explosion at an Internet cafe in southwest China killed six people and injured 37 others, state news agency Xinhua said Sunday.

The explosion occurred late Saturday in Kaili city in Guizhou province, Xinhua said, citing local police.

Rescuers said the blast had turned the cafe into complete ruins and shattered windows in nearby residential buildings, the agency reported.

Dynamite experts were still investigating the site to determine the cause of the blast, Xinhua said.

(Reporting by Sui-Lee Wee, Editing by Ron Popeski)