Agent Carlos Pitones of the Customs and Border Protection sector in El Centro, California, told CNN that the sections that gave way had recently been set in a new concrete foundation in Calexico, California. The concrete had not yet cured, according to Pitones, and the wall panels were unable to withstand the windy conditions.

The National Weather Service reports that winds in the area gusted as high as 37 mph Wednesday. Video from CNN affiliate KYMA shows the metal panels leaning against trees adjacent to a Mexicali, Mexico, street as the wind whips up dirt from the construction site on the other side of the border.

“We are grateful there was no property damage or injuries,” said Pitones.