Republicans and Democrats say the administration is failing to share basic information with Congress about the intelligence, rationale and goals of its war on drug trafficking.

Members of Congress are growing concerned over a lack of information from the Trump administration about the intelligence and strategy underlying its strikes on alleged drug smuggling boats in the Caribbean, six sources told NBC News.

Republicans and Democrats on Capitol Hill have left briefings about the strikes frustrated with the lack of information, said these people: five congressional sources and an additional source with knowledge of the matter. Some have asked for unedited video of the strikes, reflecting the kind of basic information they seek, but the administration has so far refused to provide it.

At a briefing a few weeks ago, Republican lawmakers were clearly upset with the answers they received, one of the congressional sources said.