Travelers looking to cross the land border into Canada or Mexico will have to wait at least another month after the Department of Homeland Security extended closures at both borders due to the coronavirus pandemic.

Department of Homeland Security’s Acting Secretary, Chad Wolf, tweeted the news on Thursday.

“Based on the success of the existing restrictions and close collaboration with Mexico and Canada, @DHSgov will continue to limit non-essential travel at our land ports of entry with Canada and Mexico until Aug. 20,” he wrote.

Following the announcement, he added that “close collaboration with our neighbors has allowed us to respond to #COVID19 in a North American approach and slow the travel-related spread of the virus.”