Andres Manuel Lopez Obrador has publicly urged Prime Minister Justin Trudeau to take part in the meeting, but Canada's government has given no indication yet that he will attend.

The changes, outlined in 150 pages of legalese, aim to redefine how people qualify for asylum and similar forms of protection to prevent them from being persecuted or tortured if sent home.

Trump confirmed he would invoke a statute allowing the surgeon general to block people or goods from certain countries or places to prevent the spread of communicable diseases.

Gang violence in Mexico has claimed more than 200,000 lives in the past 12 years.

Mexico has strict laws against entering the country with guns or ammunition. Those laws occasionally ensnare Americans crossing the border.

Both children made their way over the U.S.-Mexico border with a parent.

The Democratic-controlled House voted Tuesday to pass a $1.4 trillion government spending package, handing President Donald Trump a victory on his U.S.-Mexico border fence while giving Democrats spending increases across a swath of domestic programs.

Officials did not identify the suspects or specify how many people were arrested as a result of the investigation.

Mexico's asylum agency has been overwhelmed with applicants after many abandoned plans to migrate to the United States.

Migrant children stay in the shelters, run by government-funded organizations, until released to a sponsor, usually a parent or close relative.