Why did a wave of migrants cross from Morocco into Spain's Ceuta territory?

A sudden surge of migrants attempted to enter Spain's Ceuta territory from Morocco, resulting in at least 67 deaths due to drowning or trampling. Spanish officials report that most individuals have been sent back over the border, with tens of thousands returning voluntarily. Migrants interviewed by Aidan Stretch stated that hunger and hostility were the primary drivers forcing them back from Ceuta to Morocco following the commotion at the border crossing during the incident.