"These leaks cannot be tolerated and we will make every effort to put an end to it," Sessions stated. "We have already initiated appropriate steps to address these rampant leaks that undermine our national security."
The US media disclosed the name of the attacker and other details about the Manchester, England arena bombing before police were ready to release it. British Prime Minister Theresa May said she plans to address repeated intelligence leaks by US media when she meets with Trump on Thursday.
Sessions noted in his statement that he spoke to British Home Secretary Amber Rudd about the situation on Wednesday.
According to the BBC, Greater Manchester Police have stopped passing information about the bomb probe to the United States because of the leaks.