Hundreds of activists are protesting the separation of families at rallies across the Rio Grande Valley Saturday.

Brownsville organizers say live speakers will discuss immigration and civic disobedience at the Centro Cultural de Cameron Park before leading a march to the Casa Padre shelter in Brownsville where a candlelight vigil will be held.

The rallies are part of a nationwide movement calling for the reunification of families separated at the border.

Nearly 600 marches have been planned across the country for “Families Belong Together” rallies.

Saturday morning, protesters at the U.S. Border Patrol McAllen station held signs called for the closure of immigrant detention centers.