The Vatican has appointed Italian Archbishop Gabriele Caccia as its new ambassador to the United States, according to official announcements.

Caccia, described as a veteran diplomat, will replace the retiring Cardinal Pierre in the role of apostolic nuncio to the United States.

The appointment comes at a time when Vatican-U.S. relations continue to evolve under the current papal administration. As apostolic nuncio, Caccia will serve as the Pope's diplomatic representative to the United States and will be responsible for maintaining relations between the Holy See and the U.S. government.

The timing of the appointment and transition details have not been fully disclosed by Vatican officials.