1/14Forensic police work within a cordoned off area after an attack in the London Bridge area of London, June 4, 2017.
2/14A police officer carries a bunch of flowers with a message of sympathy near Borough Market after an attack left 7 people dead and dozens injured in London, June 4, 2017.
3/14Police forensic investigators work outside Borough Market after an attack left 7 people dead and dozens injured in London, June 4, 2017.
4/14British police officers walk within a cordoned off area after an attack in the London Bridge area of London, June 4, 2017. Saturday night attackers killed several people in a series of vehicle and knife attacks before police shot them dead.
5/14Police attend to an incident on London Bridge in London, Britain, June 3, 2017.
6/14A police officer clears people away from the area near London Bridge after an incident in central London, June 3, 2017.
7/14Witnesses reported a vehicle veering off the road and hitting several pedestrians on London Bridge, June 3, 2017.
8/14Police attend to an incident on London Bridge in London, Britain, June 3, 2017.
9/14Police say that late Saturday a vehicle mowed down pedestrians on London Bridge and men with large knives stabbing passersby at nearby Borough Market, June 3, 2017.
10/14A photograph taken on a mobile phone shows British police cars blocking the entrance to London Bridge, in central London,June 3, 2017, following an incident on the bridge. Witnesses reported seeing a van mounting the pavement and hitting pedestrians.
11/14People walk away about 10 minutes after midnight from inside a police cordon after an attack in London, June 4, 2017.
12/14People leave from inside a police cordon after an attack in London, June 4, 2017. Armed British police rushed to London Bridge late Saturday after reports of a vehicle running down pedestrians and stabbings nearby.
13/14Women speak to reporters after leaving a police cordon following an incident in London, June 4, 2017.
14/14Armed British police officers walk within a cordoned off area after an attack at the London Bridge, June 4, 2017.
