At least seven police officers were injured when a truck driver rammed police lines at a demonstration over rising gas prices in the Baja California city of Rosarito.

Mexican President Enrique Pena Nieto took to Twitter to condemn the violence at the Rosarito protest. Journalist Eligio Hernandez captured footage of the yellow pickup truck crashing into officers guarding a Pemex facility and later clashes between police and protesters that resulted in more than 40 arrests, according to Mexican news website Animal Politico.

Protesters were blockading Mexico’s state-owned oil company Pemex’s refinery in Rosarito as part of a week of nationwide demonstrations over the Mexican government’s decision to increase the price of gasoline by 20 percent on January 1. NBC San Diego reported that the protests and blockades had led to fuel shortages in Baja California and some Mexican drivers crossing the border to refuel. Credit: Facebook/Eligio Hernandez via Storyful