The US Federal Trade Commission (FTC) on Wednesday unveiled updates to existing laws protecting online privacy for children and giving parents greater control, Xinhua news agency reported.

"The Commission takes seriously its mandate to protect children's online privacy in this ever-changing technological landscape," said FTC chairman Jon Leibowitz.

The amendments of rules clarify that the restrictions cover not only websites but also games, apps, ad networks and other on-line plug-ins.

The regulations also expand the definition of personal information to cover photos, videos and geolocation data.

The Children's Online Privacy Protection Act (COPPA) passed in 1998 requires operators of websites or online services to give notice to parents and get their verifiable consent before collecting, using or disclosing personal information from children under 13 years old.

The FTC initiated a review in 2010 to ensure that the Act keeps up with evolving technology and changes in the way children use and access the Internet, including increased use of mobile devices and social networking.

"I am confident that the amendments to COPPA strike the right balance between protecting innovation that provides engaging content for children, and ensuring parents are involved in their children's online activities," Leibowitz said.