All UK online casinos and bookmakers will be told to sign up to Gamstop, it is understood

A system that allows problem gamblers to block themselves from all UK betting websites in one go has finally been approved by the industry regulator, 18 months after it was supposed to be ready, the Guardian understands.

All gambling companies will be told to sign up to Gamstop, developed by the trade body for online casinos and bookmakers, as a condition of their licence to operate in the UK.