Khan made the remarks to The Evening Standard shortly before a meeting with New York Mayor Bill de Blasio in September. Days before, a pressure cooker bomb injured dozens of people in New York City's Chelsea neighborhood.

\"It is a reality, I'm afraid, that London, New York, other major cities around the world have got to be prepared for these sorts of things,\" Khan said at the time.

He added, \"That means being vigilant, having a police force that is in touch with communities. It means the security services being ready, but also it means exchanging ideas and best practice.\"

In the interview, Khan criticized Trump's father, then–presidential candidate Donald Trump Sr., for saying within minutes of the explosion that it was time to \"get tough.\"

\"I'm not going to speculate as to who is responsible or how the police in New York should react,\" Khan told The Evening Standard. \"Speculating when you don't know the facts is unwise.\"

The attack near the Houses of Parliament was described as \"inspired by international terrorism\" by police. Khan is London's first Muslim mayor.

Four people were killed and at least 40 more were injured in the attack. The suspect was also killed, shot by police on the scene.

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