- Source: CNN " data-fave-thumbnails="{"big": { "uri": "https://media.cnn.com/api/v1/images/stellar/prod/170322211015-london-attack-getty.jpg?q=x_0,y_237,h_2187,w_3887,c_crop/h_540,w_960" }, "small": { "uri": "https://media.cnn.com/api/v1/images/stellar/prod/170322211015-london-attack-getty.jpg?q=x_0,y_237,h_2187,w_3887,c_crop/h_540,w_960" } }" data-vr-video="false" data-show-html="" data-byline-html="
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Updated 10:57 PM EDT, Wed March 22, 2017
" data-check-event-based-preview="" data-is-vertical-video-embed="false" data-network-id="" data-publish-date="2017-03-22T21:24:07Z" data-video-section="world" data-canonical-url="https://www.cnn.com/videos/world/2017/03/22/london-attack-how-it-unfolded-sdg-orig-mobile.cnn" data-branding-key="" data-video-slug="london attack how it unfolded sdg orig mobile" data-first-publish-slug="london attack how it unfolded sdg orig mobile" data-video-tags="british parliament,crime, law enforcement and corrections,crimes against persons,criminal offenses,england,europe,government and public administration,government bodies and offices,law enforcement,legislative bodies,london,northern europe,policing and police forces,stabbings,united kingdom" data-details="">
Ambulances wait as members of the emergency services work on Westminster Bridge, alongside the Houses of Parliament in central London on March 22, 2017, during an emergency incident.
British 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. One woman has died and others have "catastrophic" injuries following a suspected terror attack outside the British parliament, local media reported on Wednesday citing a junior doctor. / AFP PHOTO / NIKLAS HALLE'N        (Photo credit should read NIKLAS HALLE'N/AFP/Getty Images)
London attack: Watch how it unfolded
01:26 - Source: CNN
CNN  — 

London police believe they have identified the Parliament attacker, but will not name him publicly at this point, Metropolitan Police Acting Deputy Commissioner Mark Rowley said Wednesday.

Developing story - more to come