On Sunday, the situation at the border became violent after asylum-seekers stormed police blockades near the San Ysidro Port of Entry, prompting Border Patrol agents to deploy a cloud of tear gas that sent migrants running and set up an worldwide standoff between the US and Mexico.
The move by the parent's association of the elementary school came after USA border agents fired tear gas into Mexico to turn back a group of migrants who had breached the border over the weekend.
But while some are giving up their dream, others are just arriving, further stretching resources at makeshift camps.
Mexican Foreign Minister Luis Videgaray said on Wednesday that his country has repeatedly refused USA requests to force Central American migrants to seek asylum in Mexico, claiming the caravan has a right to seek asylum in the US.
The woman was brought to a hospital, where she was treated for non-life-threatening injuries and her children were evaluated for "potential fall trauma", the agency said.
"We ran, but when you run the gas asphyxiates you more", Honduran Ana Zuniga told the Associated Press.
Speaking to reporters outside the White House, he said: "First of all, the tear gas is a very minor form of the tear gas itself".
A migrant girl with a U.S. flag sits on the shoulders of a man marching with other migrants to the Chaparral border crossing in Tijuana, Mexico.
"We need Democrat votes to have a wall", Trump said.
The circumstances at the San Ysidro border crossing Sunday were exceptional, but the question facing the agents was not. Video of the scene showed a cloud of tear gas that sent people running and screaming, including families with young children.
A migrant mother who was trying to illegally enter the United States while scaling a border fence fell off and was impaled.
Mexico deports scores of Central American migrants
Firearms were used 45 times in budget year 2013 compared with 17 in 2017, according to data from Customs and Border Protection.
Others have chosen to accept offers of temporary work and asylum from Mexico.
What do people at the border say?
"We haven't been told if we are going to evict them or not", one federal police officer said.
Agents fired tear gas at the group.
"They had to use because they were being rushed by some very tough people, and they used tear gas".
"[CBP] effectively managed an extremely risky situation involving over 1,000 individuals who sought to enter the USA unlawfully in large groups".
"No circumstance justifies the use of force against migrants, particularly in the case of women and children", the Salvadoran government said in a statement. Sunday's (Monday NZT) incident began after hundreds marched to the border to try to call attention to their plight.
US Homeland Security Secretary Kirstjen Nielsen accused the migrants of seeking to harm US border patrol personnel "by throwing projectiles at them".
"We are waiting until they give us a humanitarian visa which allows us to work here because we can't go to the other side or to another country", she said.
The migrants themselves were urgently exploring their options amid a growing feeling that they had little hope of making successful asylum bids in the United States or of crossing the border illegally.
The majority of people arrested were adult males, Houlton said.
Paul Manafort breached plea deal by lying - Special Counsel Mueller
The torpedoing of Manafort's plea deal could expose him to a lengthier prison sentence and potentially more criminal charges. Manafort put up a stiff fight in court until federal jurors in Virginia found him guilty of financial crimes.