A former U.S. ambassador to Bolivia, who served as a diplomat, has been apprehended in Miami as part of an extensive FBI counterintelligence investigation.

The Associated Press has learned that Manuel Rocha, 73, faces charges of covertly acting as an agent for the government of Cuba.

The arrest occurred on Friday, with additional details anticipated to be disclosed during a court appearance on Monday, according to two individuals familiar with the matter who spoke to the AP on the condition of anonymity due to the ongoing federal investigation.

According to one source, the Justice Department’s case alleges that Rocha engaged in activities to advance the interests of the Cuban government, the Associated Press reported.

U.S. federal law mandates individuals involved in the political endeavors of foreign governments or entities within the United States to register with the Justice Department.

In recent years, the Justice Department has heightened its criminal enforcement of illicit foreign lobbying. The Justice Department has refrained from commenting on the case.

It remains unclear whether Rocha has legal representation, and a former law firm where he worked stated that it is not representing him. When contacted by the AP, his wife terminated the call.

Written by B.C. Begley