Mexico wants investigation into shooting

Mexico has sought a full investigation by U.S. authorities into a shooting on the U.S. border that left three illegal immigrants dead and two injured.

Mexico’s Foreign Ministry said it had told the Mexican consulate in Tucson to ask local U.S. authorities to investigate the attack by unknown gunmen, which took place Thursday on a back road often used by immigrant traffickers. Police say the gunmen may have been bandits.

Armed men stopped a bus full of people on the remote desert track near Tucson and began shooting at it, ministry officials said.

The nationality of the three dead men is still unknown, although the consulate in Tucson has identified the two injured as a Guatemalan woman and a Mexican man.