It is unclear whether all 39, if any, of those arrested will be deported. The mayor of Tijuana has declared a humanitarian crisis in his border city and says that he has asked the United Nations for aid to deal with thousands of Central American migrants who have arrived.
The showdown at the San Diego-Tijuana border crossing has thrown into sharp relief two competing narratives about the caravan of migrants hoping to apply for asylum but stuck on the Mexican sider.
Days before, Guerrero reported that mothers in the caravan she had spoken to had told her that the feared "certain unruly men", such as those who had previously protested at the U.S. -Mexico border fence to be allowed into the country, of hurting their chances of entering by creating a "bad reputation" for the entire group.
On Sunday, the United States temporarily shut down the San Ysidro border crossing, a Port of Entry between Tijuana, Mexico, and San Diego, California, after hundreds of Central American migrants were bombarded with tear gas and, according to multiple reports, rubber bullets, fired by US border authorities, according to BuzzFeed News.
The migrants involved in Sunday's incident were a fraction of a caravan of more than 5,000 that is now stuck in limbo in Tijuana. Many are from El Salvador, Guatemala and Honduras.
This agreement would change long-standing USA policy and would place a strong barrier in the path of Central American migrants attempting to reach the United States "fleeing violence and harm", says David Leopold, past president of the American Immigration Layers Association, based in Washington, D.C.
After the violence, Lurbin Sarmiento of Honduras walked back to the sports center with her four-year-old daughter.
Image A migrant family runs from tear gas released by US border patrol
Critics, including Latin American leaders, immigrant-rights advocates and congressional Democrats, have said use of tear gas is "un-American".
She told the Associated Press, "We ran, but the smoke always reached us and my daughter was choking".
She said she never would have gotten that close with her daughter if she thought there would be tear gas.
Meanwhile, Tijuana Mayor Juan Manuel Gastelum issued a call for help from Mexico's federal government.
"We can't have all these people here", he said.
President Donald Trump posted a tweet Monday threatening to shut down the border crossing permanently. He also made new arguments for his promised border wall.
"Mexico should move the flag waving Migrants, many of whom are stone cold criminals, back to their countries", Trump said Monday on Twitter.
"We never thought they were going to fire these bombs where there were children, because there were lots of children", said Meza, sitting in view of the rusted-steel USA border fence. "But you really say, why is a parent running up into an area where they know the tear gas is forming?"
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Tigar issued the restraining order on the basis that their arguments would probably prevail in further hearings. Late last month, some in the caravan kicked and pushed their way through the Guatemala border into Mexico .