An explosion occurred near the Mexico City police headquarters Friday, killing one man and injuring a young woman, police said.
The explosion broke windows in the immediate vicinity and shook high-rise buildings blocks away along the capital's tony Reforma Avenue. Police officers dressed in riot gear swarmed and cordoned off the area, which is the city's tourist area.
One man was killed in the explosion and a 22-year-old woman was injured, according to an officer who spoke on condition of anonymity.
"There were two explosions. It was a device that set off two explosions," Police chief Joel Ortega told Mexican radio.
Images broadcast on live television showed damaged cars and dozens of riot-gear-laden police officers crowding into the area, as a woman who appeared to be slightly injured was helped into a sitting position on the sidewalk.
President Felipe Calderon has deployed the army in a year-old battle with Mexico's powerful drug cartels. Police have made several busts in the capital and arrested suspected drug gang members found with large arsenals of weapons.
It's not the first time the area has been hit with blasts. Mexico was hit last year by a series of nonfatal bomb attacks by a left-wing guerrilla group on oil installations.