Migrant Mother Impaled in Attempt to Climb Border Fence

USA agents shot the gas, according to an AP reporter on the scene.

Some were seen scrambling up railway siding in an attempt to reach the U.S. border - with many young children at the centre of the mayhem. Yards away on the USA side, shoppers streamed in and out of an outlet mall.

A migrant woman was hurt during her attempt to climb a U.S. -Mexico border fence with her two small children.

The San Ysidro Port of Entry began closing lanes and pedestrian crossings Sunday morning amid marches on both sides of the border in support of the migrant caravan. All northbound and southbound traffic was halted.

REUTERS/Hannah McKay REFILE - CORRECTING BOY'S NAME Fernando Velosque, a migrant boy from Honduras who is part of a caravan of thousands traveling from Central America en route to the United States, sits in front of Mexican policemen for fun while a group of migrants gather near the El Chaparral port of entry of border crossing between Mexico and the United States in Tijuana, Mexico November 22, 2018.

White House spokesman Hogan Gidley said in a statement that "President Trump has developed a strong relationship with the incoming Obrador administration, and we look forward to working with them on a wide range of issues".

Dozens of Mexican police with plastic riot shields stopped the migrants well ahead of the crossing on Sunday.

But immigrant advocates have long opposed such a designation for Mexico for a number of reasons - principal among them the country's widespread and rising violence, which often targets Central American migrants.

The mayor of Tijuana blasted the government for leaving the city helpless as it struggles to cover the needs of some 5,000 caravan migrants. USA officials at the San Ysidro crossing generally accept no more than 100 asylum applications a day. The Washington Post reported that the USA and Mexico's new government have inked a deal.

"We can't have all these people here", Mujica told the Associated Press.

Asylum seekers arriving at the US-Mexico border will have to wait in Mexico while their claims are heard, under a new deal agreed by the Trump administration and Mexico's incoming president, Andres Manuel Lopez Obrador.

He said it would be "very SMART" if Mexico would stop them "long before they get to our Southern Border, or if originating countries would not let them form".

In her statement, Mexico's incoming interior secretary echoed the vows of leftist President-elect Lopez Obrador to protect the human rights of caravan travelers and other Central American migrants while providing them with food, healthcare and shelter.

Robledo said the incoming government wanted to find jobs for Central American migrants in sectors that are short-staffed, such as maquila assembly plants.