Two threatening letters sent to New York City Mayor Michael Bloomberg and his gun control group were found to contain traces of the deadly poison ricin, police said on Wednesday. The two letters, both addressed to Mr. Bloomberg, contained identical contents and were sent anonymously. One of the letters was opened in New York and the other in Washington D.C.

The packages were found to contain an oily substance, orange or pink in hue. Emergency workers who handled the letters showed minor symptoms of ricin exposure. Ricin is found naturally in castor beans, and can be lethal from exposure to a small amount causing fluid build up in the lungs. The discovery of the letters comes just weeks after letters containing ricin were mailed to President Obama and other government officials.

--------------------------------------------------------

TomoNews is your daily source for top animated news. We've combined animation and video footage with a snarky personality to bring you the biggest and best stories from around the world.

For news that's fun and never boring, visit our channel:
https://www.youtube.com/user/TomoNewsUS

Subscribe to stay updated on all the top stories:
http://www.youtube.com/subscription_center?add_user=TomoNewsUS

Stay connected with us here:
Facebook http://www.facebook.com/TomoNewsUS
Twitter @tomonewsus http://www.twitter.com/TomoNewsUS
Google+ http://gplus.to/TomoNewsUS