Washington (CNN) Immigration and Customs Enforcement arrested only 35 migrants targeted as part of an operation targeting families with court-ordered removals, that President Donald Trump had touted on Twitter, the agency announced Tuesday.

The raids were planned to target around 2,000 migrant families who had been ordered removed by an immigration judge, but the latest numbers show the arrests fell far short of that goal.

Of the 35 migrants arrested as part of Operation Border Resolve, 18 were family members and 17 were others who were encountered during an operation, said acting ICE Director Matthew Albence in a call with reporters Tuesday.

Trump insisted last week that the raids had been "very successful."

Albence said the arrests occurred nationwide, but he refrained from providing information on where or when the arrests took place when pressed by reporters.