Migrants Run From Tear Gas At U.S.-Mexico Border

The United States has halted all border traffic at the busy crossing between San Diego and Tijuana, Mexico, amid scenes of Central American migrants pushing past blockades and being hit with tear gas.

Migrants approaching the US border from Mexico have been enveloped with tear gas at Tijuana after a few tried to breach the fence separating the two countries.

US agents shot the gas, according to an Associated Press reporter on the scene.

Children were screaming and coughing in the mayhem.

READ MORE: Trump Approves 'Lethal Force' As Busloads Of Migrants Approach Border

Honduran migrant Ana Zuniga, 23, said she saw migrants open a small hole in concertina wire at a gap on the Mexican side of a levee, at which point US agents fired tear gas at them.

"We ran but when you run the gas asphyxiates you more," she told the AP while cradling her three-year-old daughter in her arms.

Mexico's Milenio TV also showed images of several migrants at the border trying to jump over the fence.

US Border Patrol helicopters flew overhead, while US agents held vigil on foot beyond the wire fence in California.

Migrants walk up a riverbank at the Mexico-U.S. border after getting past a line of Mexican police at the Chaparral border crossing in Tijuana. Image: AAP

Traffic in both directions was suspended at the San Ysidro port of entry, between San Diego and Tijuana, on Sunday, the US Customs and Border Protection agency said on Twitter.

Earlier on Sunday, some Central American migrants pushed past a blockade of Mexican police who were standing guard near the international border crossing.

They appeared to easily pass through without using violence and some of the migrants called on each other to remain peaceful.

Image: AAP

More than 5000 migrants have been camped in and around a sports complex in Tijuana after making their way through Mexico in recent weeks via caravan.

Tijuana Mayor Juan Manuel Gastelum on Friday declared a humanitarian crisis in his border city of 1.6 million, which he says is struggling to accommodate the crush of migrants.

US President Donald Trump has raised alarms about a caravan of Central American migrants as it approached the United States and has deployed military forces to the border to support the Border Patrol.

Trump tweeted on Saturday that migrants at the US-Mexico border would stay in Mexico until their asylum claims were individually approved in US courts but Mexico's incoming government denied they had struck any deal.

Featured image: AAP