“We are going to continue taking forceful actions, including continuing some efforts we already have in relation to assisted returns, coordinating the dismantling of trafficking networks and human trafficking,” Bárcena said.

Blinken said the U.S. government is working to support those efforts.

“We’re taking steps to aid the most vulnerable, those most vulnerable to organized crime, training nearly 200 Mexican immigration officials to better screen, identify and assist potential human trafficking victims,” Blinken said.

“The scale of this challenge demands that we redouble our efforts, that we do more to increase legal migration … more to address root causes and more to deter irregular migration humanely,” Blinken said.

López Obrador said Thursday during his daily news briefing that Mexico has reiterated in talks its position that there should be investment to spur development in the countries that migrants leave.

“The people don’t abandon their towns because they want to, but rather out of necessity,” the president said. He also criticized the Biden administration’s announcement Wednesday that it waived 26 federal laws in South Texas to allow border wall construction. López Obrador had previously praised Biden for not building more border wall during his presidency.

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 – the vast majority from Venezuela.

Venezuelans were stopped 25,777 times the first 17 days of September, up 63% from the same period a month earlier, according to U.S. Customs and Border Protection figures released by López Obrador. Those included some people admitted for scheduled asylum appointments, but the vast majority were illegal entries.

Venezuela plunged into a political, economic and humanitarian crisis over the last decade, pushing at least 7.3 million people to migrate and making food and other necessities unaffordable for those who remain.

The vast majority who fled settled in neighboring countries in Latin America, but many began coming to the United States in the last three years.

Deportation flights had been paused in part because the U.S. has few diplomatic relations with the nation.

U.S. and Mexican officials also discussed efforts aimed at combating the trafficking of the deadly synthetic opioid fentanyl.

Mexican officials continued to explain with some difficulty López Obrador’s blanket assertion — false according to available evidence and the U.S. government — that Mexico does not produce fentanyl.

Bárcena, the foreign relations secretary, said “there is no contradiction, chemical precursors are not produced in Mexico.” It was tacit admission that Mexican cartels import precursors, mainly from China, and process them chemically into fentanyl. But since the entire chemical process is not carried out in Mexico the government maintains that fentanyl is not produced here.

U.S. officials highlighted the recent extradition of Ovidio Guzmán López, a son of former Sinaloa cartel leader Joaquín “El Chapo” Guzmán, to the U.S. on drug trafficking charges as a sign of cooperation between the two governments.

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Balsamo and Long reported from Washington. Associated Press writers Rebecca Santana in Washington and Fabiola Sánchez in Mexico City contributed to this report.