Amsterdam - The Dutch authorities have sounded a warningabout potentially lethal white heroin that is being sold as cocaine after three Danish tourists became ill in the city this week.
Three people died and 17 became seriously ill with breathing problems late last year after inhaling heroin in Amsterdam, a city whose reputation as a free-wheeling drug culture draws tourists from around the world.
City officials said on Friday that a major public awareness campaign linked to those earlier cases will be resumed.