The incident occurred about a quarter-mile west of the San Ysidro border crossing in the Tijuana River channel. No one was seriously injured, no shots were fired and no arrests were made, said Mary Beth Caston, a Border Patrol spokeswoman.

The group first approached a lone agent stationed about 1/8 of a mile north of the border. They ignored his commands to stop, so he fired pepper balls to try to stop them and protect himself, Caston said.

As the crowd kept advancing and throwing rocks and bottles, she said, more agents came to the scene and used other “intermediate use-of-force devices” to push back the group. The agents also contacted Mexican law enforcement.

Tijuana’s top police officer, Public Safety Secretary J. Alberto Capella, said “There is no information that we can provide.” He referred questions to the U.S. Border Patrol.

The spokesman for Tijuana police, Rafael Morales, said the agency’s officers did not intervene and had no knowledge of the incident.

Caston said several agents were struck in the arms and legs with rocks, and that one agent was hit in the head with a filled water bottle.

“While attacks on Border Patrol agents are not uncommon, the agents showed great restraint when faced with the dangers of this unusually large group, and fortunately no one was serious injured,” said Paul Beeson, San Diego sector chief for the Border Patrol.

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