Members of a Central American migrant caravan that drew the wrath of US President Donald Trump during its month-long journey through Mexico to the U.S. border scaled the border fence and rallied in support of migrant rights on Sunday.
U.S. border authorities said Saturday that some people associated with the caravan had already been caught trying to slip through the fence.
Asylum seekers must demonstrate a well-founded fear of persecution at home and the overwhelming majority of those from Central America are denied refuge in the United States.
Those denied asylum are generally deported to their home countries.
US President Donald Trump has long called for the construction of a massive wall along the US Southern border, claiming that such a project is necessary to curb illegal border crossings.