On Monday night, an explosion rocked a restaurant in London, killing one person and injuring nine.
The attack, which happened in the early hours of Sunday morning, injured more than 40 people.
British Prime Minister Theresa May said at a news conference Monday morning that the explosion happened at a popular bar in Borough Market.
“I can confirm that this is an attack at the Borough Market restaurant,” May said.
“This is an appalling act of terror.”
May said that British authorities are working closely with the British and French governments to determine who is responsible.
In the United States, President Donald Trump said Monday morning, “We are not going to let this happen again.
We are going to bring those responsible to justice.”
The Associated Press contributed to this report.