The UK government plans talks with Alphabet Inc, Apple Inc and other technology giants to push them to sign a voluntary charter granting parents more control of social media use by young teens, people familiar with the matter said.

British ministers intend to launch a consultation later this month to gauge ways of limiting the potential harm to children caused by social media, according to the people, who asked not to be identified because the discussions are private. The proposed voluntary charter may involve tech firms agreeing to alert parents when their children are repeatedly looking up disturbing content, they said.