Theresa May says Trump's tweets about London attack not 'helpful'

Theresa May doesn’t appreciate Trump’s tweets.

The British Prime Minister said Sunday that it was not “helpful” for President Trump to tweet unfounded speculation about a recent attack in London.

“I don't think it's helpful for anyone to speculate on what is an ongoing investigation,” May told ABC News’ “This Week” about Trump’s tweets.

“The police and the security services are doing the work necessary to discover the full circumstances of this cowardly attack that’s taken place and to identify all of those who are responsible.”

Twenty nine people in London were injured Friday when a homemade explosive device detonated in an underground station in what police deemed a terror attack.

RELATED: Theresa May visits the White House:

Two people have been arrested in connection with the bombing, and their potential motives has not been revealed. But ISIS claimed responsibility for the bombing, which came three months after a van and stabbing attack on London Bridge killed eight people.

Trump continued his habit of rushing to Twitter with unproven allegations about the attackers.

“Another attack in London by a loser terrorist.These are sick and demented people who were in the sights of Scotland Yard. Must be proactive!” he wrote in one tweet.

In another tweet, he added, “Loser terrorists must be dealt with in a much tougher manner.The internet is their main recruitment tool which we must cut off & use better!”

There has been no proof so far that any suspects for the bombing were known to authorities beforehand.

Besides her irritation over the tweet, May insisted she still gets along with Trump on other matters.

“I do get on with him,” she said.

“I think the point about the special relationship between the UK and the U.S. is that when we do disagree we're able to say so, and pretty bluntly.”

After May’s interview, Trump retweeted his own “loser terrorists” tweet and another tweet from Friday calling for a tougher version of his travel ban.

Trump set off a spat with London Mayor Sadiq Khan in June after criticizing the British politician’s response to the London Bridge bloodshed. The feud led to calls for May to cancel Trump’s invitation for a state visit to the UK, but May said Sunday the trip is still in the works.

“Her Majesty the Queen issued the invitation,” she said.

“The President has accepted it. It's just a question of getting dates and sorting out the logistics.”