Twitter has permanently banned Donald Trump's account.
Twitter - which has long been Mr Trump's preferred social media platform - says it made the decision due to the "risk of further incitement of violence".
It follows a temporary ban earlier in the week in the wake of the riots at Capitol Hill in Washington.
In a statement, Twitter said: "In the context of horrific events this week, we made it clear on Wednesday that additional violations of the Twitter Rules would potentially result in this very course of action.
"Our public interest framework exists to enable the public to hear from elected officials and world leaders directly. It is built on a principle that the people have a right to hold power to account in the open.
"However, we made it clear going back years that these accounts are not above our rules entirely and cannot use Twitter to incite violence, among other things."
The company cited two tweets made by Mr Trump - including one saying he would attend Joe Biden's inauguration on January 20th.
They said: "President Trump’s statement that he will not be attending the Inauguration is being received by a number of his supporters as further confirmation that the election was not legitimate.
"As such, our determination is that the two Tweets [...] are likely to inspire others to replicate the violent acts that took place on January 6, 2021."
It comes in the same week Facebook 'indefinitely suspended' the outgoing US President's account.
Senior Democrats in Congress have warned they will push ahead with efforts to impeach Trump before inauguration day if he doesn't resign.