Tourists targeted in deadly attacks in southern Mexico.

A Canadian tourist was shot to death in Puerto Escondido, Mexico, becoming the second foreign tourist killed in Oaxaca in less than a week. The killing comes after an Argentine tourist was seriously wounded in a machete attack in another coastal town in Oaxaca. The two killings follow a series of other tourist deaths this year in Mexico, prompting the US State Department to issue a travel warning for certain areas of the country.