[A]t approximately 1136hrs on Tuesday, 13 February, police were informed of a suspicious package that had been delivered to an office within the Palace of Westminster.
Police are at the scene and dealing.
The letter contained a white powder which is currently being assessed by specialists. The office remains closed at this time, but the rest of the Palace of Westminster is open.
Detectives from the Met’s Counter Terrorism Command have been informed and are investigating.
