MEXICO CITY (AP) — U.S. officials worried by rising migration took their concerns south of the border this week with separate trips to Mexico City by high-level Biden administration officials and New York City’s mayor.

U.S. Secretary of State Antony Blinken discussed migration with his Mexican counterpart Alicia Bárcena, as well as foreign ministers from Panama and Colombia, Wednesday. Talks were scheduled to continue Thursday, including a meeting between U.S. Attorney General Merrick Garland and President Andrés Manuel López Obrador.

New York City Mayor Eric Adams is traveling through Latin America to learn more about the paths migrants take to the U.S. and to spread a message about the realities of arriving in his city.

He was scheduled to meet with a nun running a migrant shelter in Mexico City Thursday morning before heading to the city of Puebla, source of many of the Mexican migrants who arrive in New York, to meet with migrants and community leaders there.

In a press conference late Wednesday night in Mexico City, Adams said he hoped to “manage expectations” of migrants setting out on their journeys, and to inform migrants that his city was “at capacity” after receiving around 120,000 migrants over the past year.

He echoed a rising number of voices in calling for a larger global response to the increasing number of migrants to the U.S.

“It’s not sustainable,” Adams said at the base of a basilica where people often pray before setting out on their journeys. “The message of this not being sustainable cannot stay within the boundaries of New York City. … There is a global migration and it must have an international response.”

Blinken and other top American officials are visiting Mexico to discuss shared security issues, foremost among them trafficking of the synthetic opioid fentanyl, but also arms trafficking and increasing migration.

The latest round of the High-Level Security Dialogue brings Blinken, U.S. Attorney General Merrick Garland and Homeland Security Secretary Alejandro Mayorkas, among others, together with their Mexican counterparts.

Heightened migration was on the agenda as President Joe Biden’s administration comes under increasing pressure from Republicans and mayors from the president’s own party to do more to slow migrant arrivals.

In August, the U.S. Border Patrol made 181,509 arrests at the Mexican border, up 37% from July but little changed from August 2022 and well below the more than 220,000 in December, according to figures released in September.

The U.S. has tried to get Mexico and countries farther south to do more. In April, the U.S., Panama and Colombia announced a campaign to slow migration through the treacherous Darien Gap dividing Colombia and Panama. But migration through the jungle has only accelerated and is expected to approach some 500,000 people this year.

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