Portcullis House
He says the incident which took place in parliament was "completely unprovoked"
The "Home Office Hub" in Portcullis House will be shut next Monday and Tuesday.
Officers investigated powder said to have been sent to the Lib Dem leader's office.
The five things you need to know about politics today
He 'called me a left-wing extremist Corbynista'.
I felt embarrassed that he would be left with a personal scar from his visit and a negative perception of our country'
Loo closures lead to flood of complaints
In the wake of the Manchester bombing.
Kindness is winning over hate.