Shots were reportedly fired Wednesday at London's Westminster Bridge, near the Houses of Parliament. Police reportedly closed off roads to Parliament Square as both the Houses of Parliament and the Palace of Westminster went into lockdown due to what London police officers say was a "firearms incident."
A leader of the House of Commons said the suspect, reportedly armed with a knife, was shot by police. Reuters reported "at least a dozen people were injured." Reuters photographers showed "two people lying on Westminster Bridge, bleeding heavily," and other reports indicated a car had run down "at least five people." A police officer was reportedly stabbed.
Police are on the scene. Becca Stanek
Update 11:31 a.m. ET: House of Commons Leader David Lidington has given a statement to MPs confirming there has been "a serious incident within the estate."