UPDATE 10:36 a.m. EST:
The White House released a statement in which President Trump called the "alleged leaks" coming out of government agencies "deeply troubling."
"These leaks have been going on for a long time and my Administration will get to the bottom of this," the statement read. "The leaks of sensitive information pose a grave threat to our national security."
"I am asking the Department of Justice and other relevant agencies to launch a complete review of this matter, and if appropriate, the culprit should be prosecuted to the fullest extent of the law.
"There is no relationship we cherish more than the Special Relationship between the United States and the United Kingdom."
ORIGINAL STORY: U.K. Prime Minister Theresa May said on Thursday that when she meets with President Trump at the NATO summit in Brussels, Belgium, she will raise the issue of intelligence leaks to the U.S. media, reports CNN.
"I will make clear to President Trump that intelligence that is shared between our law enforcement agencies must remain secure," said May after a cabinet-level security meeting in Westminster.
British concerns over U.S. intelligence leaks have grown over the past few days amid fears from U.K. lawmakers that they could disrupt the intense investigations into the Manchester Arena bombing and other related incidents.
U.S. sources were the first to reveal the identity of the Manchester bomber, 22-year-old Salman Abedi, leading to concerns that investigations might be harmed.
The BBC reported that police investigating the bombing have stopped sharing information with the U.S. because of leaks.
Manchester Mayor Andy Burnham told the BBC on Thursday that such leaks were "arrogant."
"The cooperation between the US and the UK on intelligence matters is crucial for security around the world, so we can't... this can't see both sides pulling away, but that is why the Prime Minister, the government, are right to make this an issue at the summit today, and it's why I have taken a step of speaking out too, and making my concerns known," said Burnham.