United Kingdom, Sept. 5 -- Georgia Tennant is being targeted by a stalker.

The 40-year-old actress - who is married to actor David Tennant, 54 - revealed she has been the subject of Facebook death threats by a stalker who has offered a reward for her murder.

She shared an example of one of the threats on her Instagram page and tagged Facebook founder Mark Zuckerberg in the post.

The threat read: "Whoever kills Georgia Tennant immediately will receive a reward from me."

And, Georgia wrote: "Just been sent this by a friend. Out of curiosity @facebook what would constitute a breach of community standards? @zuck."

The Daily Mail also found many more threatening posts towards Georgia

One read: "I mean it seriously soon there will be an o...