The U.S. consulate in Tijuana is urging its employees to shelter-in-place until further notice as a wave of violent crime spreads through the city.

Mexican authorities have seen widespread arson and shootings by drug cartels this weekend. According to Baja, California officials, more than 30 cars have been highjacked and set on fire. At least 17 people were arrested with ties to the high jackings.

The Jalisco New Generation Cartel threatened violence against anyone who was seen on the streets of Baja California this weekend.

“Be warned. As of Friday at 10 p.m. through Sunday at 3 a.m. we’re going to create mass chaos so the [expletive] government frees our people. We’re the Jalisco New Generation Cartel, we don’t want to hurt good people but it’s best they don’t go outside, we’re going to attack anyone we see on the streets on these days,” the group said.