The secretary-general of the Organization of American States is in Cuba for a regional summit, in an unusual encounter 52 years after Cuba was kicked out of the regional bloc.

Jose Miguel Insulza is attending as an observer, so there was no official access to his arrival as was the case with foreign ministers and heads of state. But Cuban officials confirmed his presence on the island Monday.

Insulza's chief of staff says the OAS has no record of a secretary-general visiting Cuba.