Hilary Duff's alleged stalker was arrested on Friday after threatening to kill the 19-year-old singer-turned-actress, TMZ reports.


Cops arrested Maksim Miakovsky, an 18-year-old Russian immigrant, at a Residence Inn in Manhattan Beach.


Sources tell TMZ that last Friday, a private investigator from Sunset Protective Services contacted Miakovsky at the Residence Inn, and Miakovsky stated his intention of killing Duff on Sunday at an event that she was scheduled to attend.


Last month, Hilary Duff and her boyfriend, Good Charlotte vocalist Joel Madden, 27, requested a restraining order, alleging that Miakovsky "has stated his intention of 'removing' his 'enemies'has stated his intention of purchasing a weapon, and has threatened to kill himself and to engage in dramatic actions to get her attention."


Legal papers filed by Duff state that Miakovsky came to the U.S. "for the sole purpose of meeting and becoming romantically involved with Ms. Duff."


Miakovsky is currently being held on $200,000 bail at the Manhattan Beach jail. His arraignment is scheduled for Tuesday.