The US citizen killed in a knife attack in central London has been named by police as 64-year-old Darlene Horton.
A man has been arrested on suspicion of murder after she was killed and five other people were injured in Russell Square.
15:49 British police make ‘significant’ arrests in widening probes after London attack25
16:49 Family pays tribute to American slain in terror attack23
16:07 British police identify attacker who killed three in London rampage27
14:26 D.C. police: Driver tried to run over cops near Capitol11