President Donald Trump was in California on Tuesday inspecting the border wall prototypes in San Ysidro where he was met by hundreds of supporters who chanted "Build that wall!"

Demonstrators who attended Trump's visit to the border wall prototypes were "confined to a dirt lot in Otay Mesa that the County Sheriff's Department has designated a temporary 'free speech zone,'" the Los Angeles Times reported.

U.S. and Mexican authorities appeared to collaborate security on both sides of the border for the president's visit with members of the Secret Service traveling to Tijuana several days ago to help Mexico with security preparations.

As the president inspected the prototypes, hundreds of supporters rallied in the dirt lot in Otay Mesa and chanted "Build that wall!"