Assistant commissioner Mark Rowley, head of counterterrorism, confirmed four people have died including one police officer and the attacker.
Attacker ploughed into pedestrians on Westminster Bridge before crashing into the railing of the Houses of Parliament and exiting the car to continue the attack.
Attacker then stabbed one of armed officers protecting parliament, who has died.
Police are currently working on the assumption that there was only one attacker.
Two people died on Westminster Bridge
At least twenty people have been injured, including three police officers who were returning from a commendation ceremony.
Public should expect a heavier police presence on the streets of London in forthcoming days. He said: “Please be vigilant you will see more police officers armed and unarmed on the streets of London.”
Police have deployed massive resources but they can call on the military if needed
Prime Minister Theresa May, who chaired a Cobra meeting this evening, said the full details of the “sick and depraved terrorist attack” were still emerging.
President Muhammadu Buhari has sent out a message of hope to Theresa May, the British Prime Minister, and the people of the United Kingdom.
President Buhari condemned Wednesday’s terrorist attack near the United Kingdom Parliament Building at Westminster, London.
The President sympathized with the British Prime Minister, Theresa May, assuring her that the government and people of Nigeria “stand with Britons at this sad and trying moment in their country.”
The statement which was released by special adviser to the president on media and publicity, Femi Adesina, noted that the president prayed God almighty will comfort the grieving families and heal the injured.