The last remaining migrants, mostly Haitians, on Friday departed a temporary camp under a bridge in Del Rio, a border town in south-central US state Texas, according to local media reports.

A CNN team captured images under the Del Rio International Bridge of the final two buses as they departed for US Customs and Border Protection processing centers just before noon local time on Friday. In the peak time, there were almost 15,000 migrants living under the bridge earlier this month.

The soaring influx of migrants in Del Rio is a result of word-of-mouth or social media posts saying that the border at Del Rio was open, the CNN report quoted US Border Patrol Chief Raul Ortiz as saying previously.

Earlier this week, the Texas authorities sealed off the border in Del Rio by placing “a wall of vehicles” extending for miles as a makeshift barrier along the Rio Grande riverbank separating the Texas border town from Ciudad Acuna in Mexico.

According to Texas Republican Governor Greg Abbott, the state is spending 3 billion US dollars to address border security and will continue moving state law enforcement to “reduce the unprecedented influx of people trying to cross the border.”

Local media outlet The El Paso Times reported on Thursday that Mexican State Police also guarded the south bank of the Rio Grande with vehicles spacing out along a path that runs alongside the river.