Canadian Prime Minister Justin Trudeau says a Canadian is among those killed in the terrorist attack in London.
Trudeau said in a statement Sunday he is heartbroken and that Canada strongly condemns the senseless attack and stands united with the British people.
He says the Canadian government will not provide more details about the citizen killed in Saturday night's attack out of respect for the family.
Meawhile, British police say they have arrested 12 people in east London over the attack in the London Bridge area.
Police said in a statement that the arrests were made Sunday morning in Barking by counterterrorism officers.
Officials said that seven people died in the Saturday night attack and roughly 48 were wounded. A British Transport Police officer and an off-duty officer were among the injured. In addition, three attackers were shot dead by police.
Police say the investigation is progressing rapidly. Prime Minister Theresa May has blamed Islamic extremists.