Border Patrol agents came under attack by more than 100 people throwing rocks and bottles, CNN reports.
No serious injuries were reported.
The unruly group ignored stop orders from a Border Patrol agent and attempted to cross from the San Ysidro Port of Entry in California.
Not even fire pellets with pepper power stopped the group.
“The crowd became increasingly unruly and began throwing rocks and bottles,” the agency said.
The group eventually retreated and escaped arrest, CNN reported.