MEXICO CITY — An explosive device blew up a car in the northern Mexican city of Ciudad Victoria on Tuesday, killing two policemen and injuring another four in an attack that bore the hallmarks of drug cartels, police said. The improvised bomb, two days after a presidential election, was revenge for recent arrests of gang members, the attorney general’s office for Tamaulipas state said in a news release.
It went off shortly after midnight outside the home of the Tamaulipas security secretary, where the policemen stood guard, the release said.
Army bomb experts had sealed the scene and were determining the type of explosive materials used.
The device had been packed into a Ford Focus that had been parked outside for several days and was likely set off by a cellphone, local media reported.