The Department of Homeland Security (DHS) issued a strong warning to a major migrant caravan that crossed into Mexico and was moving north with hopes of reaching the U.S.-Mexico border. "USBP is closely engaged with its international partners to monitor their movement and any additional developments," DHS told Fox News in a statement. "[United States Border Patrol] USBP reminds migrants that under the leadership of President Trump and Homeland Secretary Mullin, the border has remained closed and secured for the last 16 months." The caravan, numbering in the hundreds as of Monday, is predominantly made up of Hondurans, Guatemalans, Salvadorans, Ecuadoreans and Haitians.