The chief of United States Border Patrol defended her agency's use of tear gas on hundreds of migrants who were seen rushing the border near California.

Images and video on social media showed migrants from the Central American caravan pushing past Mexican police and toward the San Ysidro point of entry.

Chief Carla Provost said Monday on Fox & Friends that border agents were being pelted with rocks and debris, which prompted them to fire tear gas.

"Our agents were being assaulted," she said. "A large group rushed the area and they were throwing rocks and bottles at my men and women."


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Provost said that approximately 6,000 migrants from the caravan have arrived at the California border near Tijuana, and about 2,000 in the Mexicali area.

"We don't want to see this happen again. We want these individuals to remain peaceful," she said. "But I will tell you that we are prepared."

She added that Border Patrol is working with its Mexican partners and will continue to do so.

"We have a shared border and of course a shared concern for the safety and the security of both communities," Provost said.


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