By Laura Gottesdiener and Lizbeth Diaz CIUDAD JUAREZ, Mexico (Reuters) - Mexican authorities have begun constructing giant tent shelters in the city of Ciudad Juarez to prepare for a possible influx of Mexicans deported under U.

The Mexican government plans to establish nine reception areas for deportees in Mexico's six northern border states over the coming weeks.

The shelters in Ciudad Juarez will have the capacity to house thousands of people, a municipal official has said.