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. 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. Tamaulipas is the state where authorities discovered 72 bodies recently on a ranch believed to be used by narcotics-traffickers. 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 when a grenade damaged apartments near the TV station's office in the city of Monterrey in neighboring Nuevo Leon state. A similar attack occurred the previous day, when a grenade was launched against the Televisa offices in the city of Matamoros, in Tamaulipas. Tamaulipas and Nuevo Leon have become a bloody battleground between the Zetas and the Gulf Cartel, which ended an alliance earlier in 2010. 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. Eight journalists were killed in Mexico in 2009 and another eight have been killed so far in 2010.
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