From breitbart.com:
Portions of the migrant caravan consisting of nearly 900 Central Americans in 22 buses arrived in the northern border state of Sonora, escorted by state and federal police on Wednesday.
A video posted online captures the caravan traveling along Mexican federal highway 15, through Esperanza, just north of Ciudad Obregon, Sonora. A smaller caravan reportedly passed through Tuesday night with an additional 400 in transit.