"The so-called Islamic State terror group has claimed through its news agency that the Westminster attacker was a 'soldier of the Islamic State'," the agency said. The Islamic State group claimed responsibility Thursday for an attack by a man who plowed an SUV into pedestrians on a crowded London bridge and then stabbed a police officer to death on the grounds of Britain's Parliament.The attacker was born in Britain and known to authorities who had once investigated him for links to religious extremism, British Prime Minister Theresa May said Thursday in a sweeping speech in which she also encouraged Britons to go about their lives.The Islamic State group said through its Aamaq News Agency that the attacker was a soldier of the Islamic State who "carried out the operation in response to calls for targeting citizens of the coalition" of countries fighting IS in Syria and Iraq.
The Islamic State of Iraq and the Levant claims responsibility.