The city government in Tijuana has shut down a shelter for migrants who have been seeking asylum in the United States, according to the Associated Press.

Officials told the AP that thousands of migrants have been moved from a sports complex in Tijuana, a city near the border, to a former concert venue that is further from the border. The first shelter was closed because of sanitation issues, the city said in a statement.

Tijuana is near the San Ysidro port of entry, one of the busiest ports of entries along the border.

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Tijuana officials said that they weren't forcing the migrants to leave the sports complex and move to the new venue, but added that they would stop providing food and medical services at the Tijuana location, the AP reported.

The migrants, who have said they are fleeing violence in their home countries in Central America, in recent months have traveled through Mexico and toward the southern border.

President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE has threatened to close off the southern border, claiming that the migrants present a national security threat to the U.S. The migrants last week arrived at the southern border, and U.S. border agents sprayed tear gas at migrants who attempted to cross into the country.