New York City comptroller and Democratic mayoral candidate Brad Lander has been arrested by federal agents at an immigration court.

City comptroller and mayoral candidate Brad Lander was arrested by ICE agents Tuesday in a chaotic scene outside a federal immigration court, his mayoral campaign confirmed. A video of his arrest has surfaced which shows Lander repeatedly demanding to see a judicial warrant for a man being hauled away by immigration agents.

The episode occurred as federal immigration officials are conducting large-scale arrests outside immigration courtrooms across the country.