"There are many things about which Donald Trump is wrong".
Trump also stressed that his proposal was a "travel ban", a description his aides have disputed in the past. "That was the point he was trying to make".
Seven people were killed and dozens more injured in the attack on Saturday, and Trump appeared to misinterpret a statement made by Khan in response to the tragic event. After his election previous year, Khan tweeted criticism of then-candidate Trump's rhetoric, saying his "ignorant view of Islam could make both our countries less safe". Trump, in a series of tweets, lashed Khan's handling of the Saturday night terror attack, mocking the mayor for telling the public there was "no reason to be alarmed" over armed police on the streets.
"The point is, there is a reason to be alarmed".
As for Trump, Khan acknowledges that Britain and the US have a "special relationship", no matter who is president.More news: Heavy rain wipes out French Open quarterfinals
He added that Khan is "entirely right" to speak as he did toward Trump.
"It's not policy, it's not an executive order".
Trump also posted on Twitter Sunday that "we must stop being politically correct and get down to the business of security for our people".
The president and the mayor's feud goes back to the presidential campaign and when Khan was first elected in May 2016.
It was not clear whether Trump Jnr read Mr Khan's actual article before misconstruing the London Mayor's comments.
"On top of that, Mayor Sadiq Khan is a very positive example to the Western world of someone who came from the Muslim community and has become a leader of all communities and he's a very positive example to peace-loving Muslims and Muslims who believe in democracy all over the world", de Blasio continued.
On Monday, a spokesman for Khan responded to the latest statement from Trump, saying, "Nothing has changed since yesterday".More news: Kathy Griffin to hold press conference to address 'bullying' from Trump Family
Trump has leapt on the London attacks as evidence of the need for hardline security measures in the United States, including a ban on travellers from some Muslim countries.
Some people with a propensity for self-destructive behavior can't seem to help themselves, President Trump apparently among them. The courts are slow and political!
Khan tells CNN's Christiane Amanpour that Trump's views of Islam "are ignorant".
Trump Jr. complained that 'every time he puts something out there he get criticized by the media.
People, the lawyers and the courts can call it whatever they want, but I am calling it what we need and what it is, a TRAVEL BAN!
Khan received support across the pond too, with his NY counterpart Mayor Bill de Blasio saying: "Mayor Sadiq Khan is doing an extraordinary job ..." "It's not a travel ban, remember", John Kelly told Fox News on May 28.More news: Gareth Bale celebrates UEFA Champions League title at home
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