Hundreds of people from the so-called "Central American migrant caravan" have reached the U.S.-Mexico border to ask America for asylum.
The group, comprised of about 400 migrants from Honduras, Guatemala and El Salvador, had made a month-long trip to reach the border city Tijuana on Sunday.
They were welcomed by U.S. immigration activists rallying on the San Diego side, but faced a tough choice of whether to cross illegally, ask for asylum at the border or try to remain in Mexico.
Border officials are already processing some asylum requests, but they warned that delays were inevitable due to the large group.
They also warned that those whose asylum cases were not strong enough would face detention or deportation.
The migrant caravan had drawn ire from President Trump, who pressured Mexico to stop the convoy by threatening to pull out of the North American FTA if it failed to do so.