Thousands of Parisian police guarded the Eiffel Tower
, the Champs Elysees and train stations on Saturday, as part of emergency measures enacted in response to text messages and Internet postings that called for "violent actions" in the capital.
National Police Chief Michel Gaudin said police were taking "every precaution," including banning certain public gatherings, a day after the calls for "violent actions" Saturday evening in Paris were posted on Internet blogs and sent in text messages to cell phones.
"This is not a rumor," Gaudin told a news conference, citing Paris' best-known landmarks among potential targets. "One can easily imagine the places where we must be highly vigilant."