Councillor Warren Morgan said:
“I am appalled and deeply saddened by the indiscriminate act of senseless violence which has taken place this afternoon in Westminster - at the very heart of British democracy."
"The loss of lives is truly tragic and the impact of what has happened is incomprehensible. Our thoughts are with the families of the victims and everyone affected.
“Brighton & Hove welcomes all and embraces the cultures our diverse communities bring to the city. We urge everyone to stand together and denounce all acts of violence. We should remember that incidents such as this are rare and we should be vigilant but not afraid.
“We thank the Metropolitan Police Force and the security officers who reacted so quickly and we send our condolences to the families of the police officer and other victims who died today.
“Flags will fly at half-mast at council buildings in the city on Thursday 23 March.”
If you hear or see something that could be terrorist related please call Anti-Terrorist Hotline confidentially on 0800 789 321. You can also report online to Sussex Police at sussex.police.uk/contact-us/report-online
Please report hate incidents at www.safeinthecity.info/getting-help/racist-incidents
For further information and support, go to www.safeinthecity.info/getting-help/preventing-terrorism-and-extremism.