A man was killed Friday in a rare shooting in broad daylight in one of Mexico City's most crowded tourist zones.

An Associated Press photographer at the scene saw the man's lifeless body covered with a tarp on a blood-covered sidewalk in the Zona Rosa, an area crowded with hotels and restaurants.

An official of the city's Public Safety Department confirmed the man was shot to death. Under department rules, the official was not authorized to be quoted by name.

The official said that one of two men on a motorcycle fired several shots at the man and then drove off. Assassins commonly use motorcycles in Central America, but that has been less common in Mexico.

Mayor Miguel Angel Mancera said the killers appeared to have been going after a specific victim, "clearly because of some quarrel."

Asked whether the killing could have been drug-related, Mancera said there were no immediate indications of that.

Mexico City has largely been spared the drug violence plaguing many parts of the country.