Firearms Incident Takes Place Outside Parliament(01 of20)
Open Image ModalLONDON, ENGLAND - MARCH 22: Police gathe on Westminster Bridge on March 22, 2017 in London, England. A police officer has been stabbed near to the British Parliament and the alleged assailant shot by armed police. Scotland Yard report they have been called to an incident on Westminster Bridge where several people have been injured by a car. (Photo by Jack Taylor/Getty Images) (credit:Jack Taylor via Getty Images)
Shots Fired Outside Parliament(02 of20)
Open Image ModalAmbulances stand with other emergency service vehicles on Westminster Bridge, beside the Houses of Parliament and the Elizabeth Tower, commonly referred to as Big Ben, in central London, U.K. on Wednesday, March 22, 2017. Multiple shots were fired near the U.K. Parliament on Wednesday in London during an incident that also saw people hit by a car on Westminster Bridge. Photographer: Simon Dawson/Bloomberg via Getty Images (credit:Bloomberg via Getty Images)
Firearms Incident Takes Place Outside Parliament(03 of20)
Open Image ModalLONDON, ENGLAND - MARCH 22: A police officer stands guard near Westminster Bridge and the Houses of Parliament on March 22, 2017 in London, England. A police officer has been stabbed near to the British Parliament and the alleged assailant shot by armed police. Scotland Yard report they have been called to an incident on Westminster Bridge where several people have been injured by a car. (Photo by Jack Taylor/Getty Images) (credit:Jack Taylor via Getty Images)
Firearms Incident Takes Place Outside Parliament(04 of20)
Open Image ModalLONDON, ENGLAND - MARCH 22: Medical staff in attendance near Westminster Bridge and the Houses of Parliament on March 22, 2017 in London, England. A police officer has been stabbed near to the British Parliament and the alleged assailant shot by armed police. Scotland Yard report they have been called to an incident on Westminster Bridge where several people have been injured by a car. (Photo by Carl Court/Getty Images) (credit:Carl Court via Getty Images)
Firearms Incident Takes Place Outside Parliament(05 of20)
Open Image ModalLONDON, ENGLAND - MARCH 22: A member of the public is treated by emergency services near Westminster Bridge and the Houses of Parliament on March 22, 2017 in London, England. A police officer has been stabbed near to the British Parliament and the alleged assailant shot by armed police. Scotland Yard report they have been called to an incident on Westminster Bridge where several people have been injured by a car. (Photo by Carl Court/Getty Images) (credit:Carl Court via Getty Images)
Firearms Incident Takes Place Outside Parliament(06 of20)
Open Image ModalLONDON, ENGLAND - MARCH 22: A policewoman stands by the cordon on Westminster Bridge on March 22, 2017 in London, England. A police officer has been stabbed near to the British Parliament and the alleged assailant shot by armed police. Scotland Yard report they have been called to an incident on Westminster Bridge where several people have been injured by a car. (Photo by Carl Court/Getty Images) (credit:Carl Court via Getty Images)
BRITAIN-POLITICS-INCIDENT-ATTACK(07 of20)
Open Image ModalArmed police officers stand guard as forensics officers work around a grey vehicle that crashed into the railings of the Houses of Parliament in central London on March 22, 2017, during an emergency incident.\nBritish police shot a suspected attacker outside the Houses of Parliament in London on Wednesday after an officer was stabbed in what police said was a \'terrorist\' incident. / AFP PHOTO / Daniel LEAL-OLIVAS (Photo credit should read DANIEL LEAL-OLIVAS/AFP/Getty Images) (credit:DANIEL LEAL-OLIVAS via Getty Images)
Firearms Incident Takes Place Outside Parliament(08 of20)
Open Image ModalLONDON, ENGLAND - MARCH 22: A member of the public is treated by emergency services near Westminster Bridge and the Houses of Parliament on March 22, 2017 in London, England. A police officer has been stabbed near to the British Parliament and the alleged assailant shot by armed police. Scotland Yard report they have been called to an incident on Westminster Bridge where several people have been injured by a car. (Photo by Carl Court/Getty Images) (credit:Carl Court via Getty Images)
BRITAIN-SECURITY/(09 of20)
Open Image ModalInjured people are assisted after an incident on Westminster Bridge in London, March 22, 2017. REUTERS/Toby Melville (credit:Toby Melville / Reuters)
BRITAIN-SECURITY/(10 of20)
Open Image ModalA woman assist an injured person after an incident on Westminster Bridge in London, March 22, 2017. REUTERS/Toby Melville TPX IMAGES OF THE DAY (credit:Toby Melville / Reuters)
BRITAIN-SECURITY/(11 of20)
Open Image ModalA woman assist an injured person after an incident on Westminster Bridge in London, March 22, 2017. REUTERS/Toby Melville (credit:Toby Melville / Reuters)
BRITAIN-SECURITY/(12 of20)
Open Image ModalA woman lies injured after a shooting incident on Westminster Bridge in London, March 22, 2017. REUTERS/Toby Melville (credit:Toby Melville / Reuters)
BRITAIN-SECURITY/(13 of20)
Open Image ModalA man lies injured after a shottingt incident on Westminster Bridge in London, March 22, 2017. REUTERS/Toby Melville (credit:Toby Melville / Reuters)
BRITAIN-SECURITY/(14 of20)
Open Image ModalA woman lies injured after an incident on Westminster Bridge in London, March 22, 2017. REUTERS/Toby Melville (credit:Toby Melville / Reuters)
BRITAIN-SECURITY/(15 of20)
Open Image ModalParamedics treat an inured person after an incident on Westminster Bridge in London, March 22, 2017. REUTERS/Toby Melville (credit:Toby Melville / Reuters)
BRITAIN-SECURITY/(16 of20)
Open Image ModalAn armed police officer runs accross the road during an incident on Westminster Bridge in London, March 22, 2017. REUTERS/Toby Melville (credit:Toby Melville / Reuters)
BRITAIN-SECURITY/(17 of20)
Open Image ModalArmed police respond outside Parliament during an incident on Westminster Bridge in London, Britain March 22, 2017. REUTERS/Stefan Wermuth (credit:Stefan Wermuth / Reuters)
BRITAIN-SECURITY/(18 of20)
Open Image ModalArmed police respond outside Parliament during an incident on Westminster Bridge in London, Britain March 22, 2017. REUTERS/Stefan Wermuth (credit:Stefan Wermuth / Reuters)
BRITAIN-SECURITY/(19 of20)
Open Image ModalAn injured man is assisted after an incident on Westminster Bridge in London, Britain March 22, 2017. REUTERS/Toby Melville (credit:Toby Melville / Reuters)
BRITAIN-SECURITY/(20 of20)
Open Image ModalAn injured person is assisted after an incident on Westminster Bridge in London, Britain March 22, 2017. REUTERS/Toby Melville (credit:Toby Melville / Reuters)