The Vatican says a road accident in Argentina has killed two young great-nephews of Pope Francis as well as their mother, the wife of the pope's nephew. Vatican spokesman Federico Lombardi said the accident occurred this morning in the area of Cordoba, Argentina. One great-nephew was 2, the other was 8 months; their father reportedly survived. "The pope was informed about the tragic accident," Lombardi said. "He is deeply pained." He added the pope asks "all who share in his grief to unite with him in prayer."