Arizona Gov. Jan Brewer's spokesman says federal officials have confirmed that migrants arrested in Texas will continue to be flown to Arizona.
In addition, hundreds of unaccompanied minors a day are being sent to a detention center in southern Arizona.
Brewer spokesman Andrew Wilder said federal officials have asked the state to release warehoused medical supplies and ship them to Nogales to deal with what Wilder called a humanitarian crisis.
Wilder said Friday that reports from foreign consulates that the U.S. Department of Homeland Security was stopping a months-long program to fly migrant families to Arizona and then bus them to Phoenix were incorrect.
Homeland Security officials promised an update on their efforts to deal with a flood of Central American migrants to Texas later Friday.