Home Secretary Amber Rudd has said she is irritated with the US for releasing information about the Manchester bomber before UK police would have liked.
Ms Rudd said the British had wanted to control the flow of information to "keep the element of surprise".
She told BBC Radio 4's Today programme she had been very clear with Washington "that it should not happen again".
Ms Rudd said the Manchester-born bomber Salman Abedi had already been on the radar of the British security services.
She claimed the 22-year-old, born to parents of Libyan origin, "was known up to a point" in the UK.