A car bomb exploded overnight between Sunday and Monday in front of a police station in Mexico, injuring seven people. Authorities reported this. The explosion occurred in Ojocaliente, in the state of Zacatecas, where Mexico's two largest drug cartels are vying for control of

The blast happened in the town of Ojocaliente in Zacatecas, a state with key routes for drug trafficking. | World News

Zacatecas is key to the drug trade because it links central Mexico with the north and west of the country and features routes that are key to smuggling cocaine and other narcotics…