The arrest of a drug trafficker linked to the Gulf Cartel in Matamoros, Mexico, has led to roadblocks, gunfire and vehicle arson, killing a young girl, authorities and local media report.

“As a result of the work of the Ministry of National Defense’s military intelligence, the Mexican Army’s special forces, and the National Guard, two people were arrested in the city of Matamoros, Tamaulipas state, including Axel Alfredo ‘N,’ known as Axel, who is considered the second-in-command of the ‘Ciclones’ gang,” Mexican Secretary of Security and Citizen Protection Omar Garcia Harfuch wrote on X.

According to him, Axel is linked to murders, kidnappings, extortion, as well as the illegal trafficking of drugs, weapons, and people to the United States. He is considered responsible for the attack on Public Security officers on May 17, which left one person dead and several others injured.

During the operation, the forces seized weapons, magazines, bullets, drugs, and a car. Both detainees were transported to Mexico City by a Mexican Air Force plane.

But following the arrest, roadblocks began in Matamoros and neighboring Rio Bravo. According to local authorities, streets and roads were closed in at least eight points. The criminals used trucks and buses, as well as nails to puncture tires. Afternoon classes in the city were suspended, and residents were urged to avoid areas where unrest is taking place.

A seven-year-old girl was killed and her mother was wounded in a shooting in the Las Rusias quarter, El Financiero reports, citing Tamaulipas attorney general Jesus Eduardo Govea Orozco. Initial reports suggest the child may have been the victim of a stray bullet during a shootout. The circumstances of the death and the source of the shot are being investigated.

In light of these events, the US consulate in Matamoros issued a security alert and ordered US government employees to shelter in place. Washington recalled that the maximum level of US travel advisory, Level 4—“Do Not Travel”—is in effect for the Mexican state of Tamaulipas.