Unnatural links

[soulmktpro]

Realizing that there are several links pointing to my domain, and most of them I do not recognize, who seem to have been made ​​by a competitor in order to hurt me in Google, how should I to proceed?

[William.Lau]

Try your best to remove them and if you receive a message from Webmaster Tools, you would need to let them know in good detail why and who is trying to do this.