Yvette Cooper, Shadow Home Secretary, said:
"This was a vile and sickening attack and our thoughts are with the family, friends and colleagues of the victim tonight.
"The police and security services will be working tirelessly as they always do in the comings days. I welcome the bravery of those who tried to help and also the calm and united response from community leaders who have condemned this appalling crime.
"The police, the Home Secretary and Prime Minister have our full and continued support in responding to this awful event."