Panama transferred about one-third of the deportees from various nations it had received from the United States to a camp in its Darien province Wednesday, an area that became the main thoroughfare for migrants traveling from South America to the U.

The group of unauthorized migrants, which includes children, were bused to the camp late Tuesday night. “It looks like a zoo, there are fenced cages,” said one of the detainees.

The United States has deported hundreds of migrants to Panama after they refused to return to their home countries voluntarily. According to a Panamanian official, these people will remain in the country until other nations agree to accept them.

A group of migrants deported from the U.S. to Panama last week were moved on Tuesday night from a hotel in the capital to the Darien jungle region in the south of the country, a lawyer representing a migrant family told Reuters on Wednesday.

The migrants refused to be repatriated to their countries. They will be held in a migration facility near the Darien Gap along the Colombian border until third countries can be found to take them.