Two weeks ago, an illegal immigrant trying to enter the United States via the San Ysidro Port of Entry, assaulted two officers from the Customs and Border Protection (CBP) Office of Field Operations in two separate incidents which occurred three days apart after authorities didn’t arrest him following the first attack.

On November 13, Juan Carlos Perez-Medina, 34, tried to cross the border. He gave the officer who stopped him papers acknowledging he was denied entry in June, 2015, as Blue Lives Matter reports.

When Perez-Medina started pacing, Field Operations officer Jose Chavez approached the first officer. He started examining the deportation paperwork, prompting Perez-Medina to bash his head with his cell phone, breaking the officer’s sunglasses and cutting his head and face.

The officers could not arrest Perez-Medina as the incident happened only a few feet from the “limit line” back into Mexico, and he had immediately fled back across it.