Hewlett-Packard has extended a worldwide recall program for batteries that could cause laptops to overheat and pose a fire hazard.

The company on Wednesday said it added new battery models to an original laptop recall program announced May 14 of last year and updated last October. The lithium-ion batteries are being used in more than 30 models worldwide in HP's laptop brands including Compaq Presario, Pavilion, HP and HP Compaq.

In a statement warning about the hazardous batteries, the U.S. Consumer Product Safety Commission advised users to "stop using recalled products immediately."

Full story: PC World