The US military has said it will not reveal specific details about its military strikes in Yemen, citing what it called the need “to preserve operational security” while also saying the strikes had “lethal effects” on Houthi rebels, Reuters reports.

Recent US strikes have killed dozens, including 74 at an oil terminal in mid-April in what was the deadliest strike in Yemen under Trump so far, according to the health ministry.

“To preserve operational security, we have intentionally limited disclosing details of our ongoing or future operations. We are very deliberate in our operational approach, but will not reveal specifics about what we’ve done or what we will do,” the US Central Command said in a statement.

The military said it has struck over 800 targets since mid-March that it says killed hundreds of Houthi fighters and numerous Houthi leaders as well as destroyed the group’s facilities.

The military statement said the strikes “have destroyed multiple command-and-control facilities, air defense systems, advanced weapons manufacturing facilities, and advanced weapons storage locations”.