Nov. 11 (Bloomberg) -- Russia became the seventh foreign mission to the United Nations to receive an envelope containing a white powder, later identified as flour, the Russian ambassador and New York police said.

Austria, Britain, France, Germany, Switzerland and Uzbekistan are the other governments with UN offices in Manhattan that were sent small quantities of flour, according to the New York Police Department and the missions. The UN headquarters on First Avenue in Manhattan hasn’t been targeted, spokesman Farhan Haq said.

Russian Ambassador Vitaly Churkin called the mailings a “sick joke.”

The envelopes were postmarked in Texas and some contained handwritten notes that mentioned al-Qaeda and the Federal Bureau of Investigation, the New York Times reported, citing the police.

Austrian Ambassador Thomas Mayr-Harting said he has been in contact with the police and other diplomats representing European Union countries and that there is no theory on the intent of the mailings.

“We feel well supported by the New York police,” Mayr- Harting said.

To contact the reporter on this story: Bill Varner at the United Nations at wvarner@bloomberg.net

Last Updated: November 11, 2009 13:01 EST