A group of unidentified people burned a trailer on Tuesday night that was parked at the entrance to the facilities of the Refinadora Costarricense de Petróleo (RECOPE) – Costa Rican Oil Refinery – in Moin.
Hours before about 30 people, at that same point, burned tires and several garbage cans.
Original reports said the disturbance had caused damage to an LGP gas pipeline, but fire authorities were able to rule that out after an inspection.
The Bomberos Communications Center confirmed that no firefighter, faced with the risk of being attacked, got out of the units until conversing at least 10 minutes with the protesters.
In Barrio Limón 2000, another tractor-trailer was burned, after unknown persons set it on fire.
Security Minister Michael Soto said several criminals threw stones at the