Security Services Cordon Off Scenes Near 'Terrorist Attack' at Westminster

Armed police responded on March 22 to reports of a police officer stabbed at the Houses of Parliament.The parliament building was then placed on lockdown, during which time MPs shared photos and video from inside the complex.A number of people were injured, reports said. The event is being treated as a terrorist incident by police. The police tweeted that they were called at about 2:40 pm local time to reports of a security incident at Westminster Bridge.Video uploaded to Twitter showed people on the bridge being helped up by other members of the public.