Mexico City , Mexico ( CNN ) -- At least two car bombs exploded Friday near the television studios of Televisa in Ciudad Victoria , the capital of Tamaulipas state in northeastern Mexico , authorities said . One blast occurred outside the TV station while the second happened next to the municipal transit service offices , said the state attorney general 's office . No fatalities or injuries were reported . The nearly simultaneous blasts occurred shortly after midnight . The explosion in front of Televisa , a CNN affiliate , damaged the building and knocked out power on the block , the station said . The station also was knocked off the air locally , Televisa said . Images of one of the blasts show the carcass of a car , the explosion leaving only the vehicle 's mangled frame but not causing much damage to nearby buildings or trees . The wreckage lies next to a wooden street pole that is slightly tilted and holds a stop sign . The car that exploded in front of the television studio was a red Chevrolet Corsica with Texas license plates , the attorney general 's office said in a news release . The car in front of the transit office was a white Mazda , also with Texas license plates , officials said . Tamaulipas is the state where authorities discovered 72 bodies this week on a ranch believed to be used by narcotraffickers . Authorities are investigating whether the 58 men and 14 women , who were migrants from Central and South America , were killed by the Zetas cartel . Televisa previously came under attack August 15 when a grenade damaged apartments near the TV station 's office in the city of Monterrey in neighboring Nuevo Leon state . There were no reports of injuries in that attack . A similar attack occurred the previous day , when a grenade was launched against the Televisa offices in the city of Matamoros , in Tamaulipas . The building was damaged but there were no reports of injuries . It was not clear Friday why Televisa is being targeted . Tamaulipas and Nuevo Leon have become a bloody battleground between the Zetas and the Gulf Cartel , which ended an alliance earlier this year . The Zetas used to be the armed branch of the Gulf Cartel but have split off into a separate drug-trafficking organization . Journalists have come under increasing attack in Mexico , as drug cartels try to limit the information being distributed about their activities . The Committee to Protect Journalists , an independent , nonprofit organization , criticized this month 's grenade attacks against Televisa . `` No journalist is safe in Mexico when criminal groups feel free to wage grenade attacks on a national broadcaster , '' said Carlos Lauria , the organization 's senior program coordinator for the Americas . `` Drug traffickers are increasingly terrorizing the press and defining what is news and what is n't . We urge the Mexican authorities must fully investigate these incidents and bring those responsible to justice . '' Eight journalists were killed in Mexico in 2009 and another eight have been killed so far this year , the Committee to Protect Journalists said this month . In total , 54 journalists and media workers have been slain in Mexico since 1992 , the group said . Car bombings by Mexican cartels are a new phenomena . Among the first was a July 15 explosion in Ciudad Juarez that killed four people .
One car bomb targeted Televisa , a CNN affiliate . The attacks occurred in the same building where the bombs were discovered this week . No deaths or injuries were reported in the attack . Televisa was previously attacked nearly two weeks ago in Mexico .