Venezuela standoff turns deadly as troops block aid delivery

  • Ivan Valencia / Associated Press

    Venezuelan demonstrators throw stones during clashes with authorities at the border between Brazil and Venezuela, Saturday.

CUCUTA, Colombia — A U.S.-backed drive to deliver foreign aid to Venezuela met strong resistance as troops loyal to President Nicolas Maduro blocked the convoys at the border and fired tear gas on protesters in clashes that left two people dead and some 300 injured.