1 Min Read
LONDON (Reuters) - Britain's domestic intelligence service said its operational response was fully mobilised in support of the police after an attack in London on Wednesday that killed four people.
"We stand shoulder-to-shoulder with our police colleagues, grieving at their loss while also applauding the professional excellence of their response," MI5 Director General Andrew Parker said in a statement.
London police said earlier on Thursday they had arrested eight people in connection with the investigation.
Reporting by Kate Holton; editing by Michael Holden