Transcript for Homeland Security Secretary Kirstjen Nielsen will travel to US-Mexico border
The head of Homeland Security travels to the southern border today secretary Houston Nielsen cut short other meetings to address what the trump administration calls a humanitarian and security crisis. Border Patrol has seen a record influx of migrant families crossing through Mexico in recent months. And these families are largely surrendering to border agents as soon as they cross over many fleeing extreme violence in Central America. Secretary Nielsen has announced emergency surge operations across the border. Agents processing legal travelers are being diverted to help process overflows of asylum applicants. That's led to a slowdown of commercial trade at several border crossings in Texas California and Arizona. President trump has even threatened to close the border completely and although he's walked back that threats slightly. He still accuse the Mexican government of not doing enough to stop migrants attempting to enter the US. Trump a Nielsen will meet to discuss border security in California later this week. For ABC news live on Quinn Owen in Washington.
This transcript has been automatically generated and may not be 100% accurate.