Des Moines Public Schools superintendent Ian Roberts has resigned from his position effective immediately, lawyers representing him said Tuesday. Roberts, who was detained by U.S. Customs and Immigration Enforcement Friday,

Alfredo Parrish, an attorney working with Des Moines Schools Superintendent Ian Roberts, is expected to provide an update on Roberts' case.

The federal Gun Control Act makes it unlawful for "illegal aliens" to ship, transport, receive or possess firearms or ammunition.