The President has made a series of comments in the wake of the attack
The US President referred to the attacks as “evil slaughter” and said: “This bloodshed must end, this bloodshed will end.”
Mr Trump made the remarks after a gala event in Washington DC.
He said: “We renew our resolve, stronger than ever before, to protect the United States and its allies from a vile enemy that has waged war on innocent life.
London terror raids Sun, June 4, 2017
Police have raided a block of flats in Barking in connection with last night's London Bridge terror attack.
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As police continue their investigations following the June 3 terror attacks, a block of flats in Barking is raided for possible suspects
“And it has gone on too long. This bloodshed must end. This bloodshed will end. As president I will do what is necessary is to prevent this threat from spreading to our shores.”
Seven people were killed and at least 48 injured after a van drove into pedestrians on London Bridge, where the attackers started randomly stabbing passers-by in Borough Market just after 10pm on Saturday.
The US Defence Secretary, Jim Mattis, did not mention the deadly London attack but said that the US and its allies would not be intimidated by ISIS violence.
Speaking at the opening of US-Australia talks in Sydney, he said: “We don’t scare.”
Mr Trump did not make any further comments about Sadiq Khan, the London Mayor.
The President lashed out at Mr Khan earlier on Sunday, saying that it was time to “stop being politically correct” about terrorism.
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The US Defence Secretary declared that the US and its allies are not scared
Taking to Twitter, he wrote: “At least 7 dead and 48 wounded in terror attack and Mayor of London says there is ‘no reason to be alarmed’!”
In another message around the same time, he wrote: “We must stop being politically correct and get down to the business of security for our people. If we don’t get smart it will only get worse.”
A spokesman for Mr Khan branded the comment “ill-informed” and said the President had deliberately taken remarks out of context that the mayor made to reassure people about the increased police presence in the wake of the attack.
The London Mayor was included in one of Trump's tweets
Speaking to the BBC, Mr Khan made clear that he was advising Londoners and visitors not to be concerned by the presence of additional armed police officers on the streets of the capital in the days to come, and not playing down anxieties about the attack itself.
Mr Khan said: “My message to Londoners and visitors to our great city is to be calm and vigilant today.
“You will see an increased police presence today, including armed officers and uniformed officers. There is no reason to be alarmed by this.”