(CNN) -- A car bomb rocked the headquarters of the Tamaulipas State Public Safety complex in Ciudad Victoria, Mexico, the agency said Thursday. No one was hurt; two police cars were damaged, it said in a news release.
Authorities said the explosion, which occurred at 5:20 p.m., appeared to have emanated from inside a white compact car in a parking lot behind the building, near the offices of the Rural Police.
Agents with the Mexican federal police are investigating the blast, which was felt inside the building.
Thursday's incident marks at least the third recent incident involving explosives near the Mexico-U.S. border. Last month, a car bomb killed four people in Juarez, where police and rescuers had responded to assist an injured person dressed in a police uniform.
Last Friday, an explosion rocked the parking lot of a TV station in Nuevo Laredo on the night that Televisa TV network faded its signal to black for almost an hour to call attention to the escalating violence in Mexico.
CNN's Gustavo Valdes contributed to this story.