Twitter has issued new rules to try to clamp down on abusive behaviour.
It's added an 'in-tweet' report button so that people can complain about abusive behaviour more directly.
It comes as Scotland Yard say they're investigating eight new claims of abuse on the social networking website.
The company has updated it's rules to make it clear that abuse will not be tolerated.
Twitter said extra staff have also been put in place to handle reports of abuse.
Scotland Yard says it's looking into the claims by eight people that they were subjected to abuse or threatening behaviour on the site.
Three female journalists complained they had been the subject of bomb threats on twitter, while an MP and a campaigner received threats of rape.
