Mexican refugees
US to probe alleged abuse of migrant children by border agents
The girl said in her account that "she felt embarrassed as the officer was speaking in English to other officers and laughing," NBC reported.
Government lawyers said 711 other children were not eligible for reunification with their parents by Thursday’s deadline, which was set by a federal judge in San Diego.
The letter was delivered during a recent meeting in Mexico with senior US officials, and details were disclosed once Trump had received it, said Lopez Obrador.
The safe third country proposal would force asylum-seekers who arrive at the US land border via Mexico to apply to stay in Mexico, likely as refugees south of the border.
Relations between Trump and Lopez Obrador will be closely watched because Trump has regularly criticized Mexico.
Over 2,000 children remain separated from their parents despite Donald Trump overturning the policy that split up families of people arrested at the Mexican American border.
Trump faced a global outcry this month, including sharp criticism from some inside his Republican Party, over migrant children being separated from their parents.
Trump backed down on Wednesday, signing an executive order to keep families together in detention during immigration proceedings.
Trump signed an executive order requiring immigrant families be detained together when they are caught entering the country illegally for as long as their criminal proceedings take.
The number looking to claim US asylum was more than double what organisers had anticipated, said Rodrigo Abeja, a coordinator from Pueblo Sin Fronteras.