The Government has praised the gambling industry's new code of conduct but added "more could be done" to protect vulnerable customers.
The new player protection code is a positive step in the right direction from the industry, but we think more could be done.
Problem gambling is a serious issue and we are determined to help tackle it. We want there to be a competitive gambling sector but not at the expense of public protection, and our ongoing review is focused on that.
More top news
The threat level has been raised to critical by MI5's Counter-Terrorism Analysis Centre.
Prime Minister Theresa May announced the decision from Downing Street.
A man, apparently armed with a small axe and a large stick, was detained close to the event and police cleared the area as a precaution.