"Free" web and app-based games for children are under investigation following concerns that users can run up substantial costs.
The Office of Fair Trading (OFT) are investigating whether children are being pressured to pay for content within the games such as upgraded membership and virtual currency.
The OFT has contacted companies who run the games asking for information on how they market to children.
It is also speaking to parents and consumer groups calling for information about potentially misleading or commercially aggressive practices.
More top news
At least 100 people are feared dead in the bombing including soldiers and Nigerians working for Doctors Without Borders.
Each broadcast automatically disappears as soon as a recording finishes and users have the option to disable comments.
Ms Saward was the first person to waive her right to anonymity when she was raped at the age of 21 and became a sexual violence campaigner.