The United Kingdom has stopped sharing intelligence on suspected drug smuggling boats in the Caribbean because of concerns about the legality of recent U.S. military strikes , two sources with knowledge of the matter told NBC News.

A British government spokesperson in London declined to comment directly on whether the U.K. had suspended some information-sharing with Washington.

“It is our longstanding policy to not comment on intelligence matters,” the Downing Street spokesperson said in an email. “The U.S. is our closest ally on security and intelligence. We continue to work together to uphold global peace and security, defend freedom of navigation, and respond to emerging threats.”

CNN first reported the suspension of intelligence sharing on narcotics trafficking vessels in Latin

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