New York, Aug 23 (IANS): An obsessive fan managed to break into singer-actress Jennifer Lopez's Hamptons mansion and went unnoticed for six days before police were called.

New York Post reports that the 49-year-old John Dubis parked his car right outside the $10 million Water Mill property and calmly moved into the star's house, reports contactmusic.com.

Sources, who witnessed the situation, told the NYP that Dubis moved into the Hamptons mansion without permission in early August and after parking his car in plain sight out in front of the property, he moved into the star's pool house as though he had been invited over by the superstar as a guest.

The stalker slept on her couch, cleaned up parts of the property, as well as set up his own blog to post snaps from his so-called-holiday.

Sources said that following his arrest, Dubis was sent for psychiatric evaluation in Riverhead, to determine his mental state.

A spokesperson for Lopez said that the star had no idea about the incident and has since moved to the Hamptons.