British Prime Minister Theresa May also took several opportunities during the interview to praise President Donald Trump. | AP Photo May: Not 'helpful' for Trump to speculate on London attack

British Prime Minister Theresa May expressed irritation with President Donald Trump's tweet after an attack on the London underground on Friday claiming "a loser terrorist" who was "in the sights of Scotland Yard," saying in an interview that such speculation was not "helpful."

"I don't think it's helpful for anyone to speculate on what is an ongoing investigation," May said after George Stephanopoulos asked her in a pretaped interview on ABC's "This Week" whether it was true that a suspect was in Scotland Yard's sights before the attack.


It's not the first time Trump has irked British officials by tweeting after an attack. The day after terrorists killed seven people in an attack in London in June, Trump took to Twitter to go after London Mayor Sadiq Khan for saying there was "no reason to be alarmed." Trump had taken Khan's quote out of context.

Still, May declined to criticize Trump during the rest of the interview and took several opportunities to praise him. She is to meet with Trump this week during a visit to the United States.

"I do get on with him," May said, adding that Trump "actually has an affection for the United Kingdom."

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Asked by Stephanopoulos what she would say to her fellow Brits, whom polls have shown have a low opinion of Trump, May responded, "Well, what I say is that they should see what President Trump has done," citing his commitment to NATO.

"I was very pleased when I came over to see him, shortly after his inauguration, that he gave an absolute 100 percent commitment to NATO," she said.