Water cannon fired in latest disorder after Belfast knife attack
social media users "highlighting properties"](https://www.bbc.co.uk/news/live/cr47x99k5n6t?post=asset%3A3a2f8791-fae7-4716-b303-46850a6eabc9#post) by posting addresses online or through apps are "putting lives at risk" and may be committing a crime
- Two police officers were injured as they tackled