The Trump administration will kick nearly two-thirds of Cuba’s embassy personnel out of the United States after months of mysterious attacks targeting American diplomats drove the White House to pull its own staff from Havana, according to multiple sources familiar with the plan.

According to three of the U.S. sources briefed on the plan, the State Department will announce the expulsion of Cuban diplomatic personnel as soon as Tuesday. A fourth described the expulsion as “reciprocity” for the American withdrawal from Havana.