MEXICO CITY (AP) — Officials in the northern Mexico border state of Coahuila said Tuesday they have closed a shelter in the border city of Piedras Negras where about 1,600 Central American migrants had been confined during the past two weeks.

Many of the migrants have been bused to neighboring states, leading to complaints that Coahuila was dumping migrants on other cities to clear out the camp at an empty factory building.

Armando Cabada, the mayor of Ciudad Juarez, to the west, said Monday that he might file a complaint against Coahuila officials. "They are offering them free transportation...