U.K. home minister warned the United States on Wednesday for leaking information regarding the terror attack in Manchester, England, and made it clear “it shouldn’t happen again.”

“The British police have been very clear they want to control the flow of information in order to protect operational integrity – the element of surprise – so it is irritating if it gets released from other sources,” Home Secretary Amber Rudd said. “[A]nd I’ve been very clear with our friends that that should not happen again.”