Sharapova`s work with the U.N. focused mainly on helping survivors of the 1986 Chernobyl disaster, but links to her profile on the U.N.`s official website were not working on Tuesday.
"The UNDP remains grateful to Maria Sharapova for her support of our work, especially around the Chernobyl nuclear disaster recovery," Britain`s Guardian newspaper quoted a U.N. spokesperson as saying.
"However, in light of Ms Sharapova`s recent announcement, we last week suspended her role as a goodwill ambassador and any planned activities while the investigation continues."
The UNDP did not immediately respond to phone and email requests by Reuters asking for confirmation of the news.
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