President Trump is expected to name a career diplomat once expelled from Bolivia for allegedly stirring up social unrest as the U.S. envoy to Cuba, according to a report.

Philip Goldberg, whose appointment is yet to be made public, will head the U.S. embassy in Havana, which has recently been depleted of its staff thanks to acoustic attacks on embassy employees from an unknown source, per Reuters.

The U.S. has not sent an ambassador to Cuba since diplomatic channels were reopened in 2016 by former President Barack Obama.

An already tenuous relationship has been further strained by business and travel restrictions imposed by Trump.

The administration is also investigating reports of a mysterious health condition suffered by some staff and their families and if the attacks are perpetrated by the Caribbean nation.

Goldberg will replace Jeffrey DeLaurentis, who left his post in June as charge d‘affaires, a position which does not require Senate confirmation.

Goldberg was expelled from Cuban ally Bolivia in 2008 after President Evo Morales accused him of fomenting social unease.

He previously served as U.S. ambassador to the Philippines and prior to that as chief of mission in Kosovo.