Mexico: Migrant caravan comes to a halt in Tijuana near US border

Thousands of people fleeing violence and poverty in Central America have arrived at the United States border to claim asylum, the first of several waves of migrants travelling in caravans.

Now in Tijuana, Mexico, they are at US’ doorstep, trying to decide what to do next.

Al Jazeera’s Heidi Zhou-Castro reports from Tijuana.