"We are asking that they be relocated", Rodriguez said, noting some migrants had approached the school grounds to ask children for money, to use the school's bathrooms and that some smoked marijuana around its perimeter walls.
Reuters photographers captured children and their mothers as they fled from the tear gas.
To enter the U.S. legally, migrants must apply for asylum, but the wait for those requests to be processed can last up to a year. He has deployed several thousand additional forces on the south western border with Mexico to prevent them from entering the country.
The controversial issue of children of illegal migrants being separated from their families in the United States rocked American society earlier this year, with many urging the White House to cease the practice. It also said they will ask local authorities to move the migrants "to other parts of the city where they will be better treated and cared for".
By Dec. 7, Congress must pass a spending bill, estimated at US$312 billion, to keep some government agencies funded, including the Department of Homeland Security, which polices the border and immigration. "Now, if we don't get it, will I get it done another way?" It has come as 300 U.S. service members on the southern border have been shifted within the last few days from assignments in Arizona and Texas to work in California, U.S. military officials said Monday.
"The Democrats would like people to believe that they're legitimate asylum seekers, but legitimate legitimate asylum seekers don't attack border guards". On Monday, he said Mexico should send them back to their home countries.
Among the 10.7 million unauthorized immigrants, two-thirds of adults have lived in the United States for more than a decade, the Pew Research Center study found.
Subdued migrants at Tijuana border camp consider options
McAleenan said individuals breached the border fence to the east of San Ysidro and some went west and sought to enter through the Tijuana River channel. US Customs and Border Protection said on Sunday that some migrants were throwing rocks at Border Patrol agents, prompting the agents to respond with force to protect themselves.
USA and Mexican officials have been wrangling over migration and how to deal with asylum-seekers at the border as Tijuana, a border city of 1.6 million resident struggles to accommodate the crush of migrants.
The use of tear gas during Sunday's events have also sparked debate.
"Through intel sources we've identified at least 600 criminals in and around the caravan", Houlton said.
Ms Nielsen accused migrant caravan organisers of using women and children as "human shields" during their encounters with law enforcement, "putting vulnerable people in harm's way". Some said they remained determined to cross, even after the results of Sunday's march to the border.
Carmen Rodriguez said parents had been calling for authorities to do something since the migrants arrived, adding that her 9-year-old daughter wouldn't be returning to classes until they are gone.
Sotomayor said he hopes migrants who had thought of entering the US illegally learned from Sunday's events that that won't be possible.
Neymar needs scan before facing Liverpool after injury scare for Brazil
The Brazilian was forced off the pitch with a groin problem during his nation's global friendly against Cameroon at Stadium MK. Neymar was withdrawn early for Brazil and Eric Maxim Choupo-Moting hopes his PSG team-mate is not seriously injured.